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【多选题】
关于离心泵扬程,下列说法正确的是()。A.
扬程描述离心泵做功的能力。
B.
离心泵扬程就是输送中的升扬高度
C.
离心泵扬程在数值上等于其工作管路的外加压头
D.
在离心泵吸入口真空表处和排出口压力表处之间列伯努利方程，可以测定其扬程。
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