دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The commercial artificial diamond. It is a ball composed by more or least radiated slender crystal of diamond. There is no obvious cleavage face. It has high abrasion resistance and mainly is used for manufacturing diamond tool.

n: the act of maintaining a floating offshore drilling rig on even keel, regardless of weather or load conditions.

n: see ballast movement.

n: see ballast movement.

n: any shipboard tank or tanker compartment normally used for carrying saltwater ballast. When these compartments or tanks are not connected with the cargo system, they are called segregated ballast tanks or systems.