English translation for "升降钻具"

hoisting and lowering

Related Translations:

季节升降:  seasonal fluctuation

升降蜗杆:  elevating endless screw

升降出入:  ascending descending entering and exiting

升降方向舵:  elevator rudder

升降记号:  double flat

升降马达:  elevator motorhn-a71cthn-b71lt

升降吊灯:  rise-and-fall pendant

升降阀:  lifting valve

升降销:  lifter pin

往复升降:  traversing lift

Example Sentences:

	1.	Mechanized tripping method with ac inverter driving system and i t ' s examples is discussed 给出了交流变频驱动钻机升降钻具机械化的技术方法和实例。
	2.	Abstract : according to the load of tripping , driving system of dri ll should have rigid output performance and regulating performance approximate to constant power 文摘:根据升降钻具的负载特点，动力驱动系统必须具备的2个基本特性是硬的机械特性和近似恒功率的调速特性。

Similar Words：

"升降装置观察器" English translation, "升降装置装置" English translation, "升降状态" English translation, "升降自动电话制" English translation, "升降钻杆" English translation, "升降作用" English translation, "升降鳍" English translation, "升礁" English translation, "升交点" English translation, "升交点黄经" English translation