今天给大家带来一段工程翻译节选段，出自本人翻译作品，欢迎跟帖哦：
During testing the pumps shall be run from minimum to full design speed over the full capacity range from minimum flow to maximum flow at a minimum of 8 or more equally spaced flow increment points including minimum flow and design flow to establish the pump characteristic, power, and efficiency curves. The tests shall be performed using water at the design temperature. The actual NPSH requirements of each pump over the pump operating range shall be determined during pump tests.
在测试进行过程中，在流量从最小流量到最大量情况下，泵应从最小速度运转至设计全速，并且应至少存在8个或更多个等距离增流点，（其中包括最小流量和设计流量）以便呈现出泵的性能、功率和效率曲线图。测试用水的水温应为设计水温。在泵工作范围内，每台泵的实际汽蚀余量的要求需在测试中确定。
The actual NPSH requirements shall be determined on the basis of a 3 percent reduction of the first stage pressure from minimum flow to one-pump runout flow. The tests shall be performed at not less than four flow rates including minimum recommended continuous flow, design point flow, and one-pump runout flow (110% of rated pump flow).
从最小流量单泵超额流量情况下，用第一阶段压力的97%来决定单泵实际汽蚀余量的要求。测试应用不少于四种流量进行，包含最小推荐连续流量、设计点流量和单泵的超额流量（110%定额泵流量） 。