叶轮有双吸和单吸两种吸液方法。
Impeller has a single suction and double suction two suction fluid ways.
双吸密封环磨损过多，或叶轮损坏。
Too much wear with dual-suction seal ring or impeller damaged.
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.
一般可分为单吸式叶轮与双吸式叶轮两种。
Generally can be divided into single suction impeller with double suction impeller two.
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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