protractor head

См. также в других словарях:

• protractor muscles — 1. A contractile muscle that functions to extend an organ. 2. (NEMATA) Muscles attached to the stylet knobs or base and anteriorly to the body wall or head skeleton. 3. (SIPUNCULA) In adult Xenosiphon and some larval forms, an extra pair of… …   Dictionary of invertebrate zoology

• hood protractor — (CHAETOGNATHA) An unpaired muscle that is found in the free edge of the hood that acts as a sphincter muscle to pull the hood over the head; protractor preputii …   Dictionary of invertebrate zoology

• Drafting machine — attached to a drawing board. A drafting machine is a very useful tool in technical drawing, consisting of a pair of scales mounted to form a right angle on an articulated protractor head that allows an angular rotation.[1] …   Wikipedia

• Combination square — with standard head A Combination Square consisting of the rul …   Wikipedia

• combination square — noun : a measuring tool consisting of a steel rule that slides through an adjustable protractor head or level or a center head which can be fixed at any point on the rule by a lock bolt and being usable as an inside or outside try square, a… …   Useful english dictionary

• Lathe (metal) — Center lathe with DRO and chuck guard. Size is 460 mm swing x 1000 mm between centers A metal lathe or metalworking lathe is a large class of lathes designed for precisely machining relatively hard materials. They were originally designed to… …   Wikipedia

• square — squarable, adj. squarelike, adj. squareness, n. squarer, n. /skwair/, n., v., squared, squaring, adj., squarer, squarest, adv. n. 1. a rectangle having all four sides of equal length …   Universalium

• Western painting — The history of Western painting represents a continuous, though disrupted, tradition from Antiquity. [Art of the Western World: From Ancient Greece to Post Modernism (Paperback)by Bruce Cole, Simon and Shuster, 1981,… …   Wikipedia

• heteropteran — ▪ insect order Introduction   any member of the insect order Heteroptera, which comprises the so called true bugs. (Some authorities use the name Hemiptera; others consider both the heteropterans and the homopterans to be suborders of the… …   Universalium

• Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… …   Wikipedia

• Milling machine — For the machine used in road construction, see Asphalt milling machine. Not to be confused with mill (grinding). Example of a bridge type CNC vertical milling center …   Wikipedia