这通常不是一个单位法向量。

And that is, in general, not a unit normal vector.

youdao

在一个最大的社会单位是部落、宗族或你作为一员的几百人团体的社会里，你的邻居和其他同盟者通常看起来都非常像你，而且行为相似。

In a world where the largest social unit is the tribe, clan or what-you-will of a few hundred people, your neighbours and your other Allies will normally look a lot like you, and act similarly.

youdao

XSLT规范的2.0版引入了一个术语样式表模块来表示能够导入或包括到称为样式表的集合实体的单位(通常是文件)。

The 2.0 version of the XSLT spec introduces the term stylesheet modules to encompass the units (typically files) that are imported or included into the collective entity called the stylesheet.

youdao