在电阻抗成像正问题研究中，研究了场域内电导率变化位置、大小对边界电位的影响。

In the study on forward problem of EIT, the effect of the position and area of electrical conductivity change in the field on the boundary potential was studied.

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这是一个全球性的记录：在取自不同大陆位置的沉积标本中，同位素比率的变化非常小。

It is a global record: there is remarkably little variation in isotope ratios in sedimentary specimens taken from different continental locations.

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拨号盘的正确位置可能会随着环境的变化而改变。

The right point for the dial is likely to change as circumstances change.

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But luckily for us, there's a classical equation of motion that will, in fact, describe how the electron and nucleus change position or change their radius as a function of time.

但幸运的是，有一个,经典方程描述了电子和核子,位置或者它们直接的距离是,如何随时间变化的。

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That's what has changed between these two positions.

这就是在这两个位置间所发生的变化。

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Most frequently, chord changes come on the downbeat so composers signal to us in a fourth way the downbeat by means of chord change.

通常,和弦的变化都在重拍上,所以作曲家们用这第四种途径,通过和弦的变化告诉我们重拍的位置

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