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本文分析了判断水泵性能的方法,对理解水泵试验方法中关于规定点的检查有帮助。同时,从数字上推导判别式,阐明了判别式的几何意义。
This paper analyzes the method of judging the performance of the pump, which is helpful for understanding the test of the specified point in the test method of the pump. At the same time, deducing the discriminant numerically, clarifying the geometric meaning of the discriminant.