It controls the inlet negative minus pressure via the quantity ratio of hot and cold winds.

通过控制热、冷风量的比值实现对球磨机入口负压的控制。

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Results 1 The onset constituent ratio and fatality rate of liver cirrhosis reposefully descend, but the in-patient quantity take on ascendance trend.

结果：1、十一年来新医大一附院消化科肝硬化的发病构成比及病死率平稳下降，但住院量有上升趋势。

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Extraction of characteristic quantity will affect straightway the distinguishability ratio of Wood disfigurement detection system.

特征量的提取直接影响木材缺陷检测系统的识别率。

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That is the whole triumph of calculus is to know that by looking at the position now, the position slightly later and taking the ratio and bringing later as close as possible to right now, we define a quantity that we can say is the velocity at this instant.

这就得靠微积分了,通过了解它现在的位置,和一小段时间以后的位置,计算它们的比,再让时间间隔尽可能缩短,我们就定义了一个,被我们称之为瞬时速度的物理量

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