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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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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Acknowledge that the space you occupy in this world is in exact ratio to the quantity and quality of the service you render for the benefice of others, plus the mental attitude in which you render it.

我们在这个世界上到底能占有多少空间，是和我们为他人利益所提供之服务的质与量，以及提供服务时所产生出的心态，成正比例的关系。

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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

耶鲁公开课 - 基础物理课程节选