lubricating mineral oil
91Boric acid — Boric acid …
92nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… …
93Lithium — (pronEng|ˈlɪθiəm) is a chemical element with the symbol Li and atomic number 3. It is a soft alkali metal with a silver white color. Under standard conditions, it is the lightest metal and the least dense solid element. Like all alkali metals,… …
94cave — cavelike, adj. /kayv/, n., v., caved, caving. n. 1. a hollow in the earth, esp. one opening more or less horizontally into a hill, mountain, etc. 2. a storage cellar, esp. for wine. 3. Eng. Hist. a secession, or a group of seceders, from a… …
95lubricate — [[t]lu͟ːbrɪkeɪt[/t]] lubricates, lubricating, lubricated 1) VERB If you lubricate something such as a part of a machine, you put a substance such as oil on it so that it moves smoothly. [FORMAL] [V n] Mineral oils are used to lubricate machinery …
96Petroleum — For other uses, see Petroleum (disambiguation). Proven world oil reserves, 2009 …
97Drilling fluid — This article is about fluids used when drilling a well. For fluids used with drill bits during metal working, see cutting fluid. Driller pouring a foaming agent down the rod string on a drilling rig In geotechnical engineering, drilling fluid is… …
98Kerosene — Kerosene, sometimes spelled kerosine in scientific and industrial usage, [Webster s New World College Dictionary, kerosene .] is a combustible hydrocarbon liquid. The name is derived from Greek keros (κηρός wax). The word Kerosene was registered… …
99Gnome Monosoupape — Monosoupape A 1917 Gnome 9N 160 hp Monosoupape rotary engine Type Rotary a …
100Ultra-high-molecular-weight polyethylene — (UHMWPE or sometimes shortened to UHMW), also known as high modulus polyethylene (HMPE) or high performance polyethylene (HPPE), is a subset of the thermoplastic polyethylene. It has extremely long chains, with molecular weight numbering in the… …
