pressure head 压头 ; 压力水头 ; 压力落差 ; 扬程
delivery pressure head 输送压力水头 ; 供水压头
air pressure head 空气压头
artesian pressure head 承压水位 ; 承压水头 ; 涌泉压力水头
pressure-head switch 压力保护开关 ; 触点式压力计
net pressure head 有效落差 ; 净压头
The actual flow reciprocating pump flow rate than theory, and with the increased pressure head decreases, which is due to leakage caused.
往复泵的实际流量比理论流量小，且随着压头的增高而减小，这是因为漏失所致。
Now the pressure head of the pump is not able to make precise calculations in theory, the general use of experimental methods.
目前对泵的压头尚不能从理论上作出精确的计算，一般用实验方法测定。
Reciprocating pump flow and pressure head has nothing to do with the pump cylinder size, and the reciprocating frequency of the piston stroke.
往复泵的流量与压头无关，与泵缸尺寸、活塞冲程及往复次数有关。
应用推荐