“hoisting system”的概念、定义、翻译、参考文献-科学参考

单词	hoisting system
释义	hoisting system Encyclopedia 工学钻井装备释 hoisting system钻机起升系统用以悬持、起升、下放钻柱、套管柱、油管柱或抽油杆柱及控制钻头送进的整套设备组合。
随便看	Grad grad gradable object gradation gradation and classification on land gradation disability identification gradation on farmland gradation on urban land grad B drift grad-B drift grade grade and purification of reagent grade correlation graded graded Abelian group graded algebra graded A-module graded bandgap layer graded category graded coalgebra graded commutativity graded completion graded complex space graded deposit graded derivation

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