在包气带剖面中，在某时刻水土势、含水量、含盐量随深度变化的趋势相同。

Sometime the matrix potential of soil water, moisture capacity and the total content of salt capacity in the soil have the same trends of change with depth.

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以太阳能为驱动热源，分析了吸附床内温度在某时刻的静态分布以及温度、压力和脱附速率随时间的动态变化。

Taking solar energy as a drive thermal resource, the static temperature distribution at some time, the dynamic state change of temperature, pressure and desorption speed with time was analyzed.

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通过灰色关联度引入基本权重概念，以刻画各种方法在某时刻前一段时期内全面的、平均的预测效果对加权系数的影响。

Through the concept of gray interconnect degree, the basic weight to depict the influence of mean prediction effect before some moment on the weights was studied.

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When you think about your career, like a moment where you were particularly proud, or a moment where you were particularly challenged by something, and realized that makes me think in a wholly different way.

您在回顾您的工作时，比如说某一时刻您十分自豪，或者说您的观点受到了挑战,让您用一种,全新的角度来思考。

普林斯顿公开课 - 人性课程节选

This is a very good way to explain what you are doing at a given moment in time.

这个句型可以很好地解释在某一时刻你正在做些什么。

I'm ~ing 课堂 - SpeakingMax英语口语达人

There are lots of people who have pointed out to us that before a certain period, there was no such thing as man, and in a variety of quite real senses, after a certain moment in the history of culture, there is also no such thing as man.

很多人向我们指出,在某一特定时间点前是没有人类的，而且在真实意义上，在文化史中的某一特定时刻后，人类也不存在。

耶鲁公开课 - 文学理论导论课程节选