The experiment and calculating example show when concentration of polymer solution increases angle of lag of valve ball opening increases and pump admission coefficient drops.
试验和计算实例表明，随着聚合物浓度的增加，阀球开启滞后角度增大，泵充满系数降低。
Both methods demonstrate some delay lag occurring in pump valve movement.
这两类方法得到的结果均说明泵阀运动存在滞后现象。
Finally take the relay valve for example, time lag characteristic of air brake actuating system is discussed and the spectrum analysis is introduced in…
以继动阀为例，探讨了气制动传动系统滞后反应时间特性，并将频谱分析引入到对气制动传动系统动态特性的分析与评价中。
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