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1·So if we wanna know the rate of change of neutrons as a function of time we will write this expression.

所以，当我们想要知道中子的变动率，那是时间方程，我们会写下这个表达式。

2·Remember angular velocity is just the rate of the change of the angle over time.

角速度,是角度随时间改变的快慢。

3·How else are you going to calculate how much your parts costs have gone up, or automatically give a limited-time discount to a valued customer, or calculate the effect of a retroactive rate change?

要不您如何计算零部件成本增长了多少，或者自动向有价值的客户提供限时折扣，或者计算追溯费用变更的影响？

4·With the probe to change the production mode, saving a lot of auxiliary time, scrap rate reduction! Easy to use, small batch processing in order to change faster.

用测头改变生产模式，节省了大量的辅助时间，报废率降低！使用方便，小批量加工换序能够更快。

5·Speed is the rate between the change of distance and time.

速度是距离的改变与时间之间的比率。

6·Generally we considered the affection elements of the temperature test results, is the temperature, holding time, temperature change rate and so on.

通常认为，影响温度试验效果的要素有温度、停留时间、温变率等。

7·We estimated the time at which the rate of decline begins to accelerate (the change point), and the pre - and post-acceleration rates of decline, from the longitudinal data using a change point model.

利用改变点模型从纵向数据中找出加速点、前加速期下降速率和后加速期下降速率。

8·The results show that the weldments made from those metals in as-welded condition are instable in dimension and the rate of dimensional change decreases with time.

结果表明：七种材料的焊件都存在着尺寸不稳定，这种尺寸不稳定变形随时间的变化速率逐渐变缓；

9·Cement additives are used to change the cement's density, setting time, compressive strength, flow properties and dehydration rate, to cause the cement to expand, and to reduce the cost of the cement.

水泥添加剂用来改变水泥的密度、凝固时间、抗压强度、流动性能和脱水率，并用来使水泥膨胀以及降低水泥成本。

10·The rate of change in business has been going up for some time now.

变化的速率的业务已经持续了一段时间了。