minimum head meaning in English

最低水头
最小水头

Based on the principle of hydraulics , the general equation for head loss and the formula for calculation of pressure head along the flexible hoses were worked out , and the method for determination of the maximum and minimum heads and their positions was given
摘要根据水力学原理建立了软管沿程水头损失的一般方程，得出了软管沿程压力水头的计算公式，给出了确定最大和最小压力水头位置及大小的方法，从计算结果与试验实测结果的对比看，具有一定的合理性。