英语词汇“traveling block”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Word forms: (regular plural) traveling blocks

noun

(Extractive engineering: Field development, Equipment)

A traveling block is a set of sheaves (=pulleys) which forms part of a system in the derrick for lowering and lifting heavy things into or out of the wellbore.

The traveling block may contain from three to six sheaves depending upon the loads to be handled andthe mechanical advantage necessary.

The traveling block supports the drill column and travels up and down as it hoists the pipe out of thehole and lowers it in.

A traveling block is a set of sheaves which forms part of a system in the derrick for lowering andlifting heavy things into or out of the wellbore.

单词	traveling block
释义	traveling block in the Oil and Gas Industry (trævəlɪŋ blɒk) or travelling block Word forms: (regular plural) traveling blocks noun (Extractive engineering: Field development, Equipment) A traveling block is a set of sheaves (=pulleys) which forms part of a system in the derrick for lowering and lifting heavy things into or out of the wellbore. The traveling block may contain from three to six sheaves depending upon the loads to be handled andthe mechanical advantage necessary. The traveling block supports the drill column and travels up and down as it hoists the pipe out of thehole and lowers it in. A traveling block is a set of sheaves which forms part of a system in the derrick for lowering andlifting heavy things into or out of the wellbore.
随便看	non-manual worker nonmarital nonmarket nonmaterial nonmaterial culture nonmathematical nonmatriculated nonmature nonmeaningful nonmeasurable nonmeat nonmechanical nonmechanistic nonmedical nonmeeting non-member nonmember nonmembership nonmental nonmercurial nonmetal nonmetallic nonmetameric nonmetaphorical nonmetric

traveling block in the Oil and Gas Industry