| 单词 | pump jack |
| 释义 | > as lemmaspump jack pump jack n. a reciprocating pump for drawing up liquid (esp. oil) from below ground. ΚΠ 1913 Daily Rev. (Decatur, Illinois) 30 July 9/2 A..Rotary Pump Jack..was given a try out on a five inch well, 177 feet deep. 1922 U.S. Patent 1,428,671 1/1 The present invention relates to pump jacks for oil wells. 1973 Times 1 Dec. 2/3 The Kimmeridge pump jack, familiarly known in the trade as a nodding donkey, seesaws steadily on. 2004 New Yorker 26 July 52/3 One hand clutching a mike in front of his Adam's apple, the other hand pistoning from shoulder to waist like an oil-field pump jack. < as lemmas |
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