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。
Because the pipe plugging always occurs in construction this cause the pile break and make economic losses.
施工中常出现堵管,由于处理不当而形成断桩,造成经济损失。
The electricity which is carried by gasoline suffers heavy losses when the gasoline is led to flow through earthing matellic pipe.
汽油所带电荷在流经接地金属管时有很大损失。
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