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

单词	pile rig
释义	DictionarySeepile driver pile rig pile driver A machine for delivering repeated blows to the top of a pile for driving it into the ground; consists of a frame which supports and guides a hammer weight, together with a mechanism for raising and dropping the hammer or for driving the hammer by air or steam. Also See sonic pile driver.
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pile rig