followed+the+copy

let¹ [let] (pt & pp let, cont letting)

1 noun

(a) (rental) location f;

∎ she took a six-month let on a house elle a loué une maison pour six mois;

∎ a short/long let une location de courte/longue durée

(b) Sport (in tennis, squash) balle f let;

∎ let! let!;

∎ the ball was a let la balle était let;

∎ to play a let jouer une balle let

(c) Law (hindrance)

∎ without let or hindrance librement, sans entrave

2 transitive verb

(a) (rent) louer;

∎ to let (sign) à louer

(b) archaic

∎ or literary to let (sb's) blood faire une saignée (à qn)

►► Sport let ball balle f let

let² [let] (pt & pp let, cont letting)

1 transitive verb

(a) (permit) laisser, permettre; (allow) laisser;

∎ to let sb do sth laisser qn faire qch, permettre à qn de faire qch;

∎ she let them watch the programme elle les a laissés regarder l'émission;

∎ I couldn't come because my parents wouldn't let me je ne suis pas venu parce que mes parents ne me l'ont pas permis;

∎ I let the cakes burn j'ai laissé brûler les gâteaux;

∎ let me buy you all a drink laissez-moi vous offrir un verre;

∎ don't let me stop you going je ne veux pas t'empêcher d'y aller;

∎ let me see the newspaper fais-moi voir le journal;

∎ to let sb past laisser passer qn;

∎ they don't let anyone near the reactor ils ne laissent personne approcher du réacteur;

∎ let me tell you that… permettez-moi de vous dire que…;

∎ it wasn't easy, let me tell you! ça n'a pas été facile, crois-moi!;

∎ familiar don't let it get you down! ne te laisse pas abattre pour ça!;

∎ don't let him get to you ne te soucie pas de lui;

∎ to let sb have sth donner qch à qn;

∎ don't be selfish, let him have a cake! ne sois pas égoïste, donne-lui un gâteau!;

∎ I'll let you have a copy of the report je vous ferai parvenir une copie du rapport;

∎ she let him know what she thought of him elle lui a fait savoir ce qu'elle pensait de lui;

∎ let me know when he wakes up prévenez-moi quand il se réveillera;

∎ I'll let him know you're here je vais le prévenir que vous êtes arrivé;

∎ please let me know if there's any change veuillez me prévenir s'il y a du changement;

∎ please God don't let anything happen to her! faites qu'il ne lui arrive rien!;

∎ to let sth pass laisser passer qch;

∎ familiar to let sb have it (physically) casser la figure à qn; (verbally) dire ses quatre vérités à qn

(b) (followed by "go")

∎ to let sb go (allow to leave) laisser partir qn; (release) relâcher qn; (allow to escape) laisser échapper qn; euphemism (dismiss, fire) licencier qn;

∎ to let sb go, to let go of sb (stop holding) lâcher qn;

∎ they let the hostages go ils ont relâché les otages;

∎ she let her assistant go elle a licencié son assistant;

∎ let me go!, let go of me! lâchez-moi!;

∎ to let sth go (allow to escape) laisser échapper qch;

∎ to let sth go, to let go of sth (stop holding) lâcher qch;

∎ hold the rope and don't let go (of it)! tiens la corde et ne la lâche pas!;

∎ to let oneself go (neglect oneself, relax) se laisser aller;

∎ he's really let the garden go il a vraiment négligé le jardin;

∎ that remark was uncalled-for but I'll let it go cette réflexion était déplacée mais restons-en là;

∎ give me £5 and we'll let it go at that donne-moi 5 livres et on n'en parle plus

(c) (in making suggestions)

∎ let's hurry! dépêchons-nous!;

∎ let's go to bed allons nous coucher;

∎ let's go! allons-y!;

∎ don't let's go out or let's not go out tonight ne sortons pas ce soir;

∎ let's not have an argument about it! on ne va pas se disputer pour ça!;

∎ now, let's not have any nonsense! allons, pas de bêtises!;

∎ shall we have a picnic? - yes, let's! si on faisait un pique-nique? - d'accord!;

∎ formal let us pray prions ensemble

(d) (to focus attention)

∎ let me start by saying how pleased I am to be here laissez-moi d'abord vous dire combien je suis ravi d'être ici;

∎ let me put it another way je vais tâcher d'être plus clair;

∎ let me try and explain je vais essayer de vous expliquer

(e) (in hesitation)

∎ let me think attends, voyons voir;

∎ let me see, let's see voyons

(f) (to express criticism or defiance)

∎ if she doesn't want my help, let her do it herself! si elle ne veut pas de mon aide, qu'elle le fasse toute seule!;

∎ let them talk! laisse-les dire!

(g) (in threats)

∎ don't let me catch you at it again! que je ne t'y reprenne plus!;

∎ familiar let me catch you doing that again and you're for it! si je te reprends à faire ça, ça va être ta fête!

(h) (in commands) Bible

∎ let there be light que la lumière soit;

∎ let the festivities begin! que la fête commence!;

∎ let them be! laisse-les tranquilles!, fiche-leur la paix!

(i) (in making assumptions)

∎ let us suppose that... supposons que...;

∎ Mathematics let x equal 17 soit x égal à 17;

∎ Mathematics let ABC be a right-angled triangle soit un triangle rectangle ABC

2 let alone conjunction

∎ I wouldn't go out with him, let alone marry him je ne sortirais même pas avec lui, alors pour ce qui est de l'épouser...;

➲ let by separable transitive verb

➲ let down separable transitive verb

(a) (disappoint) décevoir;

∎ to let sb down gently ménager qn;

∎ I felt really let down j'étais vraiment déçu;

∎ our old car has never let us down notre vieille voiture ne nous a jamais lâchés;

∎ he has been badly let down il a été gravement déçu

(b) (lower, let fall → object) baisser, (faire) descendre; (→ hair) dénouer;

∎ figurative to let sb down gently traiter qn avec ménagement

(c) (garment) rallonger;

∎ to let the hem of a dress down rallonger une robe

(d) (deflate) dégonfler

➲ let in separable transitive verb

(a) (person, animal) laisser entrer;

∎ to let sb in ouvrir (la porte) à qn, faire entrer qn;

∎ his mother let me in sa mère m'a fait entrer ou m'a ouvert (la porte);

∎ here's the key to let yourself in voici la clé pour entrer;

∎ she let herself in with a pass key elle est entrée avec un passe

(b) (air, water) laisser passer;

∎ the roof lets the rain in le toit laisse entrer ou passer la pluie;

∎ my shoes let in water mes chaussures prennent l'eau

(c) Cars

∎ to let in the clutch embrayer

➲ let in for separable transitive verb

∎ he didn't realize what he was letting himself in for il ne savait pas à quoi il s'engageait;

➲ let in on separable transitive verb

∎ to let sb in on sth mettre qn au courant de qch;

➲ let into separable transitive verb

(a) (allow to enter) laisser entrer;

∎ my mother let her into the flat ma mère l'a laissée entrer dans l'appartement

(b) (allow to know)

∎ I'll let you into a secret je vais te confier un secret

(c) (insert) encastrer;

∎ the pipes are let into the wall les tuyaux sont encastrés dans le mur;

∎ to let a door/window into a wall percer une porte/fenêtre dans un mur

➲ let off

1 separable transitive verb

(a) (excuse) dispenser;

∎ to let sb off doing sth dispenser qn de faire qch;

∎ I've been let off work je suis dispensé de travailler

(b) (allow to leave) laisser partir; (allow to disembark) laisser descendre;

∎ we were let off an hour early on nous a laissés partir une heure plus tôt;

∎ they let us off the bus on nous a laissés descendre du bus

(c) (criminal, pupil, child) ne pas punir;

∎ the judge let him off lightly le juge a fait preuve d'indulgence à son égard;

∎ she was let off with a fine elle s'en est tirée avec une amende;

∎ I'll let you off this time pour cette fois, je passe;

∎ you let him off too easily vous n'avez pas été assez sévère avec lui

(d) (bomb, explosive) faire exploser; (firework) faire partir; (gun) laisser partir

(e) (release → steam, liquid) laisser échapper;

∎ figurative to let off steam se défouler

(f) (rent) louer;

∎ the whole building is let off as offices tout l'immeuble est loué en bureaux

2 intransitive verb

familiar (break wind) péter

➲ let on

1 separable transitive verb

(allow to embark) laisser monter;

∎ they let us on the train on nous a laissés monter dans le train

2 intransitive verb

familiar parler^□ ;

∎ she never let on elle ne l'a jamais dit;

∎ somebody let on about the wedding to the press quelqu'un a parlé du mariage à ou a révélé le mariage à la presse;

∎ he didn't let on that he saw her (didn't tell anyone) il n'a pas dit qu'il l'avait vue; (didn't acknowledge her) il a fait semblant de ne pas la voir;

∎ don't let on! pas un mot!

➲ let out

1 separable transitive verb

(a) (allow to leave) laisser sortir; (bird) laisser échapper; (prisoner) libérer;

∎ the teacher let us out early le professeur nous a laissés sortir plus tôt;

∎ my secretary will let you out ma secrétaire va vous reconduire;

∎ don't get up, I'll let myself out ne vous levez pas, je connais le chemin

(b) (water, air) laisser échapper;

∎ someone's let the air out of the tyres quelqu'un a dégonflé les pneus

(c) (shout, oath, whistle) laisser échapper

(d) (secret) révéler;

∎ who let it out that they're getting married? qui est allé raconter qu'ils allaient se marier?

(e) (garment) élargir

(f) Cars

∎ to let out the clutch débrayer

(g) British (rent) louer;

∎ they let out boats by the hour ils louent des bateaux à l'heure

2 intransitive verb

American (end) finir

➲ let up intransitive verb

(a) (stop) arrêter; (diminish) diminuer;

∎ the rain didn't let up all day il n'a pas cessé ou arrêté de pleuvoir de toute la journée;

∎ once he's started he never lets up une fois lancé, il ne s'arrête plus

(b) (relax)

∎ he never lets up il ne s'accorde aucun répit;

∎ don't let up now, you're in the lead ce n'est pas le moment de faiblir, tu es en tête

➲ let up on inseparable transitive verb

familiar

∎ to let up on sb lâcher la bride à qn

SUBJECT AREA: Textiles

[br]

[br]

[br]

Arkwright was the youngest of thirteen children and was apprenticed to a barber; when he was about 18, he followed this trade in Bol ton. In 1755 he married Patients Holt, who bore him a son before she died, and he remarried in 1761, to Margaret Biggins. He prospered until he took a public house as well as his barber shop and began to lose money. After this failure, he travelled around buying women's hair for wigs.

In the late 1760s he began spinning experiments at Preston. It is not clear how much Arkwright copied earlier inventions or was helped by Thomas Highs and John Kay but in 1768 he left Preston for Nottingham, where, with John Smalley and David Thornley as partners, he took out his first patent. They set up a mill worked by a horse where machine-spun yarn was produced successfully. The essential part of this process lay in drawing out the cotton by rollers before it was twisted by a flyer and wound onto the bobbin. The partners' resources were not sufficient for developing their patent so Arkwright found new partners in Samuel Need and Jedediah Strutt, hosiers of Nottingham and Derby. Much experiment was necessary before they produced satisfactory yarn, and in 1771 a water-driven mill was built at Cromford, where the spinning process was perfected (hence the name "waterframe" was given to his spinning machine); some of this first yarn was used in the hosiery trade. Sales of all-cotton cloth were initially limited because of the high tax on calicoes, but the tax was lowered in 1774 by Act of Parliament, marking the beginning of the phenomenal growth of the cotton industry. In the evidence for this Act, Arkwright claimed that he had spent £12,000 on his machine. Once Arkwright had solved the problem of mechanical spinning, a bottleneck in the preliminary stages would have formed but for another patent taken out in 1775. This covered all preparatory processing, including some ideas not invented by Arkwright, with the result that it was disputed in 1783 and finally annulled in 1785. It contained the "crank and comb" for removing the cotton web off carding engines which was developed at Cromford and solved the difficulty in carding. By this patent, Arkwright had mechanized all the preparatory and spinning processes, and he began to establish water-powered cotton mills even as far away as Scotland. His success encouraged many others to copy him, so he had great difficulty in enforcing his patent Need died in 1781 and the partnership with Strutt ended soon after. Arkwright became very rich and financed other spinning ventures beyond his immediate control, such as that with Samuel Oldknow. It was estimated that 30,000 people were employed in 1785 in establishments using Arkwright's patents. In 1786 he received a knighthood for delivering an address of thanks when an attempt to assassinate George III failed, and the following year he became High Sheriff of Derbyshire. He purchased the manor of Cromford, where he died in 1792.

[br]

SUBJECT AREA: Aerospace

[br]

[br]

[br]

Cayley was born into a well-to-do Yorkshire family living at Brompton Hall. He was encouraged to study mathematics, navigation and mechanics, particularly by his mother. In 1792 he succeeded to the baronetcy and took over the daunting task of revitalizing the run-down family estate.

The first aeronautical device made by Cayley was a copy of the toy helicopter invented by the Frenchmen Launoy and Bienvenu in 1784. Cayley's version, made in 1796, convinced him that a machine could "rise in the air by mechanical means", as he later wrote. He studied the aerodynamics of flight and broke away from the unsuccessful ornithopters of his predecessors. In 1799 he scratched two sketches on a silver disc: one side of the disc showed the aerodynamic force on a wing resolved into lift and drag, and on the other side he illustrated his idea for a fixed-wing aeroplane; this disc is preserved in the Science Museum in London. In 1804 he tested a small wing on the end of a whirling arm to measure its lifting power. This led to the world's first model glider, which consisted of a simple kite (the wing) mounted on a pole with an adjustable cruciform tail. A full-size glider followed in 1809 and this flew successfully unmanned. By 1809 Cayley had also investigated the lifting properties of cambered wings and produced a low-drag aerofoil section. His aim was to produce a powered aeroplane, but no suitable engines were available. Steam-engines were too heavy, but he experimented with a gunpowder motor and invented the hot-air engine in 1807. He published details of some of his aeronautical researches in 1809–10 and in 1816 he wrote a paper on airships. Then for a period of some twenty-five years he was so busy with other activities that he largely neglected his aeronautical researches. It was not until 1843, at the age of 70, that he really had time to pursue his quest for flight. The Mechanics' Magazine of 8 April 1843 published drawings of "Sir George Cayley's Aerial Carriage", which consisted of a helicopter design with four circular lifting rotors—which could be adjusted to become wings—and two pusher propellers. In 1849 he built a full-size triplane glider which lifted a boy off the ground for a brief hop. Then in 1852 he proposed a monoplane glider which could be launched from a balloon. Late in 1853 Cayley built his "new flyer", another monoplane glider, which carried his coachman as a reluctant passenger across a dale at Brompton, Cayley became involved in public affairs and was MP for Scarborough in 1832. He also took a leading part in local scientific activities and was co-founder of the British Association for the Advancement of Science in 1831 and of the Regent Street Polytechnic Institution in 1838.

[br]

SUBJECT AREA: Aerospace, Weapons and armour

[br]

[br]

[br]

In 1909 he entered the Moscow Higher Technical School and became a pupil of Nikolai Zhukovsky, who was known as "the father of Russian aviation". Graduating in 1918, he helped Zhukovsky to set up the Zhukovsky Central Aerohydrodynamic Institute and was made Assistant Director. He was appointed Head of the Institute's Design Department in 1922: his work was concentrated on wind tunnels and gliders, but later included aerodynamic calculations and the construction of all-metal aircraft. His first significant design project was the twin-engined Ant-29 fighter prototype, which appeared in the early 1930s and eventually entered service as the SB-2. However, Tupolev and his wife fell victim to Stalin's purges in 1937: she was sent to a labour camp and he was imprisoned, but in 1943 both were rehabilitated and Tupolev was able to resume his design work. He devoted his attention to long-range strategic bombers, the first of these being the Tu-4, a copy of the US B-29, followed by the Tu-70 bomber. He also designed the Tu-104 airliner, and in 1967 he produced the world's first supersonic airliner, the Tu-144. Tupolev also became interested in fast-attack naval craft and designed a number of torpedo launches, and he rose to the rank of Lieutenant-General in the Soviet air force's Engineering and Technical Service.

[br]

[ha:d] a պինդ, կարծր, ամուր, կոշտ. hard bed/chair չոր մահճակալ/աթոռ. hard ground պինդ գետին/հող. hard water կոշտ ջուր. the hard sign լեզվ. կոշտության նշան (ռուս. Յ տառը) ծանր, դժվար. a hard task դժվար խնդիր. hard to say դժվար է ասել. he’s hard to please նրան դժվար է գո հացնել. (խիստ, դաժան) a hard father/ heart խիստ հայր, դաժան սիրտ. hard facts անա ռար կե լի/դաժան փաս տեր. a hard climate/ winter խստա շունչ կլի մա/ձմեռ. (ուժեղ, թունդ) a hard blow ուժեղ հար ված. a hard liquor թունդ խմիչք. a hard worker ջանասեր աշ խատող. a hard drinker թունդ հարբեցող. (տարբեր օգտ.) hard of hearing ծան րականջ, ծանր լսող. be hard on smb անար դար լինել մեկի նկատմամբ. hard up նեղ/դժվարին կացության մեջ. have hard luck բախտը չբերել. hard currency կայուն տա րա դրամ. hard labour տաժանակիր աշխա տանք. pay in hard cash կանխիկ դրամով վճա րել. հմկրգ. մշտական, ամուր, կոշտ. hard copy տպագրական կրկնօրինակ. hard disk կոշտ սկավառակ. hard error մշտական սխալ. hard page break էջի խիստ սահման

[ha:d] adv ուժգին ամուր կերպով. հաստատապես. pull hard ուժգին ձգել/քաշել. raining/ snowing/freezing hard հորդառատ անձրև. առատ ձյուն. խիստ սառնամանիք. try hard, try one`s hard best շատ ջանք թափել. think hard մի լավ մտածել. It will go hard with him Դա նրան ծանր կնստի. drink hard թունդ խմել. (մոտիկ, մոտ) The car followed hard behind Մեքենան կրնկակոխ հետևում էր. take smth pretty hard ավելի քան ծանր ընդունել/տանել

a) ‹ persona› ( copiar) to copy, imitate;

◊ se sentó y todos lo imitaron he sat down and everyone followed suit

b) ‹voz/gesto/estilo› to imitate;

c) ( tener el aspecto de) to simulate