“pumping unit counterbalance”的概念、定义、翻译、参考文献-科学参考

单词	pumping unit counterbalance
释义	pumping unit counterbalance Encyclopedia 工学抽油机平衡释 pumping unit counterbalance抽油机平衡抽油机在上、下冲程中悬点载荷均衡。
随便看	political ritual political role political rule political scheme directed the countryside of the Kuomintang government political science political science of resources Political Science Syllabus political slogan political socialization political sociology political speech political stability political state political stratification political structure political structure of society political subject political superstructure political system in ancient Greek polis political system of ancient Rome political system of Europe in Middle Ages political theory political thought in Ming dynasty of China political thought in Qin and Han dynasties of China political thought in Qing Dynasty of China

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