The conclusions of the study are helpful to the design and manufacture of single-screw pump.
本文的结论对单螺杆油气混输泵的设计制造和科学研究都具有一定的参考价值。
And centrifugal pumps compared with single-screw pump do not need to install the valve, while the linear flow of traffic is stable.
和离心泵相比，单螺杆泵不需要装阀门，而流量是稳定的线性流动。
With the piston pump, diaphragm and gear pumps is different is that single-screw pump can be used for pharmaceutical filling and measurement.
与柱塞泵、单螺杆泵及齿轮泵不同的是，单螺杆泵可用于药剂填充和计量。
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