The traditional quasi-steady friction models are proved to be inaccurate in transient pipe flow because they underestimate friction losses in transients.
在液体管道瞬变流计算中，传统的拟恒定摩阻模型不能准确描述瞬变流的真实物理现象。
This paper gives, from the energy equation for rapidly varied flow, the equations for the calculation of the curve of equal cavitation number in consideration of friction losses.
本文在考虑水流阻力的情况下，提出计算等空化数曲线的方程组，并给出电算程序。
Pipe friction is the resistance to flow caused by the pipe. As a general principle, it is better to use the largest practical pipe size to avoid losses in pump performance.
管道摩擦力是指由管道引起的流动阻力，作为一个常用原则，最好是使用最大的实用的管道尺寸以避免在水泵性能方面的损失。
After the plasma finishing, the fabric surface had fine lines and pits, and the friction between the fibers was increased, which could effectively improve the fabric strength losses.
等离子体整理后纤维表面产生微小的细纹和凹坑，使纤维之间的摩擦力增加，减小织物的强力损失。
After the plasma finishing, the fabric surface had fine lines and pits, and the friction between the fibers was increased, which could effectively improve the fabric strength losses.
等离子体整理后纤维表面产生微小的细纹和凹坑，使纤维之间的摩擦力增加，减小织物的强力损失。
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