well adv.很好地；相当地int.好吧；啊adj.健康的；良好的；适宜的n.井；源泉；楼梯井v.涌出
双语例句
This article proposed one kind of drilling pump that the piston is driven by the ball bearing spiral mechanism. 本文提出的一种钻井泵是由滚珠螺旋机构来驱动活塞进而驱动泥浆的往复泵。
The method noted above has significance for guiding hydraulics and pump working condition design in hydraulic orientation. 该方法对于水力定向时的水力参数设计及钻井泵工况选择具有指导意义。
