A sequence of values indicating positive or negative direction in time, years, months, days, hours, minutes, and seconds.

表示时间正向或逆向的一组值：年、月、日、时、分和秒。

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In these neutral times, when we are neither ecstatic nor extremely sad, the slightest change in attitude can swing our happiness balance drastically in either a positive or negative direction.

在这些不甜不苦的日子里，当我们既没有狂喜也没有极度悲伤，态度的细微变化就可以使你的快乐在积极与消极之间剧烈的摆动。

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No matter what you say, they have a way of spinning things in a negative direction.

不管你说什么，他们总是有办法把谈话转向消极方向。

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It says, if you pull it to the right, so that x is positive, the spring will exert a force which is in the negative direction; that's why you have a minus sign.

就是说,如果你向右拉,x 取正值,弹簧产生的力方向为负,这就是这里用负号的原因

耶鲁公开课 - 基础物理课程节选

Delta v is positive in this direction here, the work is negative. So work on the system is positive. Work done by the system is negative.

功是负的，总而言之,外界对系统做功的符号为正。

麻省理工公开课 - 热力学与动力学课程节选

So, what this means is that when we're looking at an actual wave function, we're treating it as a wave, right, so waves can have both magnitude, but they can also have a direction, so they can be either positive or negative.

这意味着,当我们看一个波函数时,我们把它看做一个波，波不仅有幅值，还有方向，所以它们可正可负，如果。

麻省理工公开课 - 化学原理课程节选

The universe also contains information coded with the direction, speed and positive or negative charges of subatomic particles.

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It is, for example, equipped with a rear-wheel steering system (Precision All-Wheel Steer) that allows the rear wheels to be pointed, independently, up to 2 degrees of toe-angle adjustment in either direction (in or out, negative or positive), for 4 degrees of articulation.

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While this recent run by the euro may be a bit overdone and price has stalled slightly ahead of the 1.2500 level, traders need to be very wary of this pair as the reaction to stress tests, positive or negative, could send it rocketing in either direction.

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