当它被分配一个值，该值将在的位置变量在内存中。

When it is assigned a value, that value will in memory at the location of the variable.

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其优化模型包含两类设计变量：几何位置变量和几何尺寸变量。

The optimization model contains two kinds of designing variables: geometric position variable and geometric dimension variable.

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从次级位置变量出发，建立多段初级式永磁直线同步电机整体动态模型。

According to the position of the secondary, the integrated dynamic model of a permanent linear synchronous motor (PMLSM) with several segment primaries is established.

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If you think about what happens when we go from hydrogen to helium, now instead of one electron, we have to describe two electrons, so now we have six position variables that we need to plug into our Schrodinger equation.

如果你们考虑,当我们从氢到氦会发生些什么，现在我们不是要描述一个电子，我们将要描述两个电子，所有我们现在将有6个位置变量,需要加入至薛定谔方程。

麻省理工公开课 - 化学原理课程节选

So if, in fact, we want to describe a wave function, we know that we need to describe it in terms of all three quantum numbers, and also as a function of our three positional factors, which are r, the radius, phi plus the two angles, theta and phi.

实际上，我们想描述波函数，我们知道我们需要,用这三个量子数来描述它，同样，波函数还是,三个位置变量的函数，它们是r半径，还有两个角度theta和。

麻省理工公开课 - 化学原理课程节选