The magnitude and direction of force could not change the trend of the stress distribution.

牵引力的大小、方向基本不改变应力的分布趋势。

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Since it is not easy to judge the direction of force in a fall, much less the extent of force, the belayer must evaluate each situation and make use of the rock for the most secure position.

由于在降落过程中很难判断受力的方向，更不用说受力的大小，因此保护者必须对每一种情况进行估量，并利用岩石取得最安全的位置。

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By investigating the direction of force acted upon particles and the direction of fluid flow in the classifier, the concepts of cross flow classification and reverse flow classification were proposed.

考察了分级过程中颗粒所受的力场和介质流体的流动场，分析和比较了与之对应的两种不同形式的分级，即颗粒物料的逆流分级和错流分级。

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Infinity is the force when we're thinking about it and our brains, negative infinity is when we actually plug it into the equation here, and the reason is the convention that the negative sign is just telling us the direction that the force is coming together instead of pushing apart.

说力有多大时，我们想到的,是无穷大，而方程解出来的,是负无穷，这是因为习惯上,我们用负号表示力的方向,是相互吸引而不是相互排斥的,所以我们可以用库仑定律。

麻省理工公开课 - 化学原理课程节选

They will have the power to hire and fire chief constables and set local police objectives and the budget - but chief constables will remain in charge of the direction and control of the police force.

BBC: Peers reject delay to police chief elections

PPCs will have the power to hire and fire chief constables and set local police objectives and the budget - but chief constables will remain in charge of the direction and control of the police force.

BBC: Police Reform Bill: Consideration of Lords' amendments

These commissioners will have the power to hire and fire chief constables and set local police objectives and the budget - but chief constables will remain in charge of the direction and control of the police force.

BBC: Call for councils to have closer relationship with PCCs