风险事故中，误操作导致的风险占风险事件总数的比例很大。

A large number of risk events are caused by misuse failure.

youdao

在单层细胞中，LH和FSH 阳性细胞占细胞总数的比例不足10%。

The percentage of LH and FSH cells in total layered cells was no more than 10%.

youdao

今年年初，女人占劳动力总数的比例超过了一半，这在美国历史上是第一次。

Earlier this year, women became the majority of the workforce for the first time in U.S. history.

youdao

You see, if they give the-- if they merely give shares to the CEO without increasing your shares, then you are being diluted because it's raising the total and it's reducing the ratio.

如果他们仅仅给首席执行官股份,而不给你们增发股份的话,那么你们的股份会因总数增加而被摊薄,比例有所降低

耶鲁公开课 - 金融市场课程节选

The idea really took root--the idea, the intuitive idea is that as you write a large number of policies, the fraction that will result in accidents becomes closer and closer to the probability of one accident.

这种观点建立在...,观点是,只要你签的保单足够多,事故占保单总数的比例就会越来越接近,事故发生的概率

耶鲁公开课 - 金融市场课程节选