性能曲线可直观地反映往复泵运行工况及其特性，传统的绘制方法工作量大，且效率低。
The performance curves directly reflect the running status of reciprocating pump and its features; the traditional drawing method has the characteristics, a great deal of work and low efficiency.
现有的300MW机组凝汽器特性曲线没有考虑到水环真空泵汽蚀特性对凝汽器运行特性的影响，不能准确反映凝汽器的运行状态。
In the existing 300mw steam turbine condenser performance curve, the cavitation in water ring vacuum pump is not taken account, so the curve can't exactly reflect the operation state of condenser.
利用特性曲线对变速泵与定速泵并联运行工况进行了讨论，指出其正确切换步骤。
Running conditions of parallel-connected variable and constant speed pump are discussed using pump performance curve, and the correct switch steps are pointed out.
本文结合实际介绍了离心泵四象限运行特性曲线自动化试验系统的测试回路，并给出了测试系统的硬件方案和软件设计方法。
The automatic four quadrant characteristic test system of centrifugal pump was introduced, and the implementation method of the hardware and software of the test system were given.
本文结合实际介绍了离心泵四象限运行特性曲线自动化试验系统的测试回路，并给出了测试系统的硬件方案和软件设计方法。
The automatic four quadrant characteristic test system of centrifugal pump was introduced, and the implementation method of the hardware and software of the test system were given.
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