尽管 numeric 的涵盖面当然与可以利用 Pyrex 的函数不同，但是肯定会有一些重叠。
The coverage of numeric is certainly not identical to those functions that can benefit from Pyrex, but there is certainly some overlap.
但二者又不能互代，与教学重叠的德育实践容易成功，与教学共通面少的德育实践则困难得多。
The practice of moral education overlapping teaching can work easily, but there are great difficulties if it is less common to teaching.
不能出现UV重叠，因为软件不知道哪个面是你想用在解算中的，因而会一次性的绘制出来。
You cannot have overlapping UV's since the software will not know which of the faces you want to be used in the calculation and instead will draw them all at once.
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