The test results have proved that the flow rate widely varied and the pump efficiency is high when the pump outlet line structure was altered and the outlet pressure was controlled in a special limit.
试验结果表明，改变泵出口管线结构，使泵出口压力在一定范围内工作时，流量变化大，而且泵效率较高，可以作为泵调整参数的一种手段；
The National Fire Protection Agency (NFPA) Guidelines require a confirming flow test to be conducted whenever a "main line" valve such as the shutoff valves or a backflow assembly have been operated.
美国国家 防火协会（NFPA）指导原则要求对于主管 线上运行的阀门，如关闭阀或防回流阀总成，必须进行流量测试。
The article introduced the concept of on-line test, expounded the flow and theory of on-line test for PCB(printed circuit board), and analyzed several technics of on-line test.
简单介绍了在线测试这一概念；阐述了印刷电路板在线测试的流程和原理；分析了几种在线测试中的工艺性测试。
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