Effects of the half year and month anomalous frequency velocityrate methods are tested.
对半年和月异常频次速率法的应用效果进行了检验。
2
The velocityrate is not less than 0.3 in designing expanding duct and not less than 0.35 in designing reducing duct.
进行突扩风道设计时，速度比的取值不宜小于0.3，突缩风道设计时，速度比的取值不宜小于0.35。
3
This paper describes the design method of deflection crank slider mechanism of the given stroke velocityrate and slider stroke, which has optimum transmission performance.