lubricating passage
31nitrogen 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… …
32separation and purification — ▪ chemistry Introduction in chemistry, separation of a substance into its components and the removal of impurities. There are a large number of important applications in fields such as medicine and manufacturing. General principles… …
33uterine cervix — ▪ anatomy lowest region of the uterus; (uterus) it attaches the uterus to the vagina and provides a passage between the vaginal cavity and the uterine cavity. The cervix, only about 4 centimetres (1.6 inches) long, projects about 2 centimetres… …
34Chevrolet Cosworth Vega — This article is about the Chevrolet Cosworth Vega. For general Vega information, see Chevrolet Vega. Chevrolet Cosworth Vega 1975 Chevrolet Cosworth Vega Hatchback Coupe Manufacturer Chevrolet Division of General Motors …
35Crankcase ventilation system — A crankcase ventilation system is a way for gases to escape in a controlled manner from the crankcase of an internal combustion engine. A common type of such system is a positive crankcase ventilation (PCV) system, the heart of which is a PCV… …
36Operation Dawn 9: Gulf of Aden — Part of Piracy in Somalia, Operation Ocean Shield, Operation Enduring Freedom – Horn of Africa …
