نمایش نتیجه 1701 تا 1710 از 2718 نتیجه یافت شده برای v:
رگه ی رو باز
n: a diving lifesupport system in which the divers exhalation is vented completely to the water.
the operating valve (open and flowing) in a gas lift system.
n: the person or company. either proprietor or lessee. actually operating an oilwell or lease. generally the oil company that engages the drilling. service. and workover contractors. Compare unit operator.
n: the company that carries out an exploration or development programme on a particular area for which it holds a licence. The operator may hire a drilling contractor and various service companies to drill wells,and will provide a representative (company man
the company who makes the decisions and is responsible for drilling, completing, operating and repairing the well.
اپراتور /بهره بردار
n: when turbodrill drilling, the certain realationship of turbodrill s bottom power, bit pressure, speed and mechanic speed is existed under certain fluid volume. When adopt a range of technical parameters, the rapid lower of speed with the raise of bit pr
n: the makeup torque should not too large or too little, generally speaking the value is determined on the basis of experimental data and experience or looked for in reference book.
n: a mineral from which a valuable substance such as a metal can be extracted.
a mineral deposit rich enough to be mined commercially.
n: an explanation of the origin of petroleum that holds that the hydrogen and the carbon that make up petroleum come from land and sea plants and animals. The theory further holds that more of this organic material comes from very tiny swamp and sea creatures than comes from larger land creatures.
the most widely accepted theory to explain the generation of hydrocarbons. As organic materials are buried, heat and pressure transform them into hydrocarbons over geologic time.
n: (OPEC) an organisation of the countries of the Middle East, Southeast Asia. Africa, and South America that produce oil and export it. Members as of 1997 are Algeria. Ecuador, Gabon. Indonesia, Iran. Iraq. Kuwait, Libya, Nigeria. Qatar. Saudi Arabia, die United Arab Emirates. and Venezuela. The organisations purpose is to negotiate and regulate oil prices.
a set diameter passage. (Not really a valve).