The very word difference implies measurement but we are using the word non-comparatively.

不同这个词本身，意味着衡量，但是，我们是在不进行比较地用这个词。

youdao

Measurement implies that the thing being measured is meaningful.

度量意味着被度量的事物是有意义的。

youdao

That directly implies that if we were to select either one of the two measurement points shown as a reference point then clearly we would not see all the modes of the structure.

这直截了当地表明了如果我们选定所示的这两个测点中的任何一个作为参考点，那么很显然我们将观察不到结构的所有阶模态。

youdao