该系列射流式自吸离心泵的研究是成功的。
双螺杆泵为一种双吸式非密闭的双螺杆泵。
Double screw pump is a kind of double suction not airtight double screw pump.
CWZ系列船用卧式自吸离心泵适用于船舶压载舱底泵、冷却泵及消防泵等。
CWZ Series Marine pumps are used at cabin bottom to cool water and fight fire.
采用气动流式吸纸系统，故障少，声音小，易保养；有别于真空泵之保养问题。
Adopt pneumatic suction system, noiseless and easy maintenance, to avoid vacuum pump problem.
而双作用式泥浆泵每往复一次完成两次吸排水行动。
The double acting reciprocating mud pump one time every two suction drainage action.
而双作用式泥浆泵每往复一次完成两次吸排水行动。
The double acting reciprocating mud pump one time every two suction drainage action.
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