该方法测试精度高，流量范围的适应性好。
The method has high testing precision and good adaptability of flow scope.
该生产线的方向控制阀，可在流量范围广泛的港口规模和简历。
The directional control line of valves are available in a wide range of port sizes and Cv flow capacity.
双级水平中开泵为需要适度的高水头而设计，能提供一个很宽的流量范围。
Two Stage, Horizontally Split Case Pumps designed for applications requiring moderately high head over a wide range of flows.
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