secondary lead

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• lead processing — Introduction       preparation of the ore for use in various products.       Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… …   Universalium

• Secondary dominant — (also applied dominant) is a type of chord used in musical harmony. It refers to a dominant of a degree other than the tonic, with V7/V, the dominant of the dominant, being the most frequently encountered [Kostka, Stefan and Dorothy Payne (2003) …   Wikipedia

• Lead poisoning — Classification and external resources An X ray demonstrating the characteristic finding of lead poisoning, dense metaphyseal lines. ICD 10 T …   Wikipedia

• Lead dioxide — Lead dioxide …   Wikipedia

• Secondary measure — In mathematics, the secondary measure associated with a measure of positive density ho when there is one, is a measure of positive density mu, turning the secondary polynomials associated with the orthogonal polynomials for ho into an orthogonal… …   Wikipedia

• Secondary flow — In fluid dynamics, a secondary flow is a relatively minor flow superimposed on the primary flow, where the primary flow usually matches very closely the flow pattern predicted using simple analytical techniques and assuming the fluid is inviscid …   Wikipedia

• secondary education — Traditional second stage in formal education, typically beginning at ages 11–13 and ending usually at ages 15–18. The distinction between elementary education and secondary education has gradually become less marked, because of the proliferation… …   Universalium

• Secondary hypertension — While most forms of hypertension in humans have no known underlying cause (and are thus known as essential hypertension or primary hypertension ), in about 10% of the cases, there is a known cause, and thus the hypertension is secondary… …   Wikipedia

• Secondary education in France — Lycée redirects here. For other uses, see Lycée (disambiguation). In France, secondary education is in two stages: collèges (French pronunciation: [kɔlɛʒ]) cater for the first four years of secondary education from the ages of 11 to 14… …   Wikipedia

• Lead Belt — The Lead Belt is a lead mining district in the southeastern part of Missouri. Counties in the Lead Belt include Saint Francois; Crawford; Dent; Iron; Reynolds; and Washington. European lead mining started in 1720, by Philip Francois Renault of… …   Wikipedia

• Lead(II) azide — chembox ImageFile = Lead(II) azide.png ImageSize = IUPACName = OtherNames = Section1 = Chembox Identifiers CASNo = 13424 46 9 UNNumber = 0129 PubChem = 61600 SMILES = Section2 = Chembox Properties Formula = Pb(N3)2 MolarMass = Appearance =… …   Wikipedia