Throughout the process, you will be using a mix of variables you estimate/know and variables that you calculate from the step before.

通过这样的流程，你可以使用预估的或是已经得知的变量集合，以及通过一步步计算得出的变量来估算问题的答案。

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No-one had found a way to calculate accurate distances to the planets from the Earth.

还没有人找到方法来计算从地球到行星的精确距离。

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In the nineteenth century, scientists made a number of important, but unsuccessful attempts to calculate Earth's age from the record of various natural processes.

19世纪，科学家们做了许多重要的尝试，希望通过各种自然过程的记录来计算地球的年龄，但都未能成功。

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Now what I want to do is put up a specific example of the cycle that can be undertaken inside here in an engine, and we can just calculate from what you've already seen of thermodynamics.

现在我想做的是,举一个例子,来具体说明热机内部的循环过程，同时我们可以利用热力学定律进行计算,看看热力学参量发生了什么变化。

麻省理工公开课 - 热力学与动力学课程节选

So really what we'll probably do is instead either give you the wavelength or the frequency and you'll go ahead and calculate the energy from there.

所以实际上我们可能的做法是,给你波长或者频率,然后你可以通过他们计算得到能量。

麻省理工公开课 - 化学原理课程节选

This is going to be probably a homework at some point to do this. For now, let's take it for granted. Let's take it for granted that we know how to calculate this derivative from an equation of state like this.

这可能是将来的一个课后作业,现在，请把这当成理所当然的，理所当然地认为我们,知道怎样从一个状态,方程计算这样的微分式。

麻省理工公开课 - 热力学与动力学课程节选

It is possible to calculate from the two unemployment curves approximately how many job-years of temporary employment Romer and Bernstein were forecasting would be created by their stimulus program.

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When Argyris first came up with the FEM no-one believed him because it was so simple and only had a limited number of nodes to calculate a solution from.

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You calculate cash flow from ops, roughly speaking, this way: add to net income any noncash charges (such as for depreciation or an allowance for future tax bills), then add favorable changes in such balance sheet items as accounts payable and accounts receivable.

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