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MAN Y,LI W.A novel method of energy saving fornodding donkey oil pump.Lecture Notes inComputer Science. 2007A novel method of energy saving fornodding donkey oil pump. MAN Y,LI W. Lecture Notes inComputer Science . 2007Yongkui Man Wenyan Li . A Novel Method of Energy Sav-ing for ...
nodding donkey pump:点头式抽油泵(一种石油开采设备) 词根词缀及记忆方法 词根:nod,意为“点头;打盹;摆动”。 后缀:-ing,表示现在分词或正在进行的动作。 记忆方法:结合词根和后缀的含义,可以更容易地记住nodding的意思和用法。 单词造句 The professor was nodding as he listened to the student's presentation...
Define nodding donkey. nodding donkey synonyms, nodding donkey pronunciation, nodding donkey translation, English dictionary definition of nodding donkey. n informal a type of reciprocating pump used to extract oil from an inland well Collins English Dic
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Nodding donkey oil, also known as pumping unit oil, is a type of crude oil extracted using a pumpjack (commonly referred to as a nodding donkey). This method of oil extraction is widely used in the industry due to its efficiency and cost-effectiveness. As a result, nodding donkey oil ...
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Entering the pumping chamber next to the pit head, the water turned a 23ftm 0 diameter overshot waterwheel that powered a nodding donkey or pumpjack. en.wikipedia.org The common name snake's head probably refers to the somewhat snakelike appearance of the nodding flower heads on their long ...
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