local head loss 局部水头损失
universal head loss coefficient 通用压头损失系数
frictional head loss 沿程水头损失 ; 沿程阻力损失
fluid head loss 液体压头损失
knee head loss 弯管水头损失
head loss of pipeline 管路水头损失 ; 管线水头损失
system head loss 系统水头损失
permissible head loss 允许水头损失
debris head loss ? has been introduced and the debris head loss coefficient and water head loss coefficient have been deduced and the methods to compute the two coefficients are given.
进而提出了“泥头损失”和“泥头损失系数”概念，给出了泥石流与主河水流交汇过程中“泥头损失系数”与水头损失系数的求解方法。
参考来源 - 泥石流与主河水流交汇机理及其河床响应特征·2,447,543篇论文数据，部分数据来源于NoteExpress
The full round port area provides maximum flow capacity and minimum head loss.
完全的圆形流道截面能够提供最大的流量和最小的流压损失。
The valve is an impeding part with larger pressure head loss and a lot of discharge energy consumed.
风量调节阀系阻性部件，存在较大的压头损失，须消耗大量送风能量。
Usually the cost of printing ink, head loss, by the media, and some film. The figure of waste composition.
通常喷绘的本钱由喷头损耗、墨水、介质、废图和覆膜挂轴等有些构成。
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