And the way it will work is that you have to choose an orientation of a surface, which just means choosing one of the two possible unit normal vectors.

具体方法是，先给曲面定向，也就是选择两个单位法向量中的一个。

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This is what leads to the need to delineate the relationship and distinction between service-orientation and service-oriented technology architecture. Here's one way of breaking it down.

正是这导致了划清面向服务和面向服务技术架构之间关系和区别的需求。

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The morals content is very complicated, but is clear in one way. It should have the double characteristics of realistic restraint and ideal orientation.

道德的内涵十分复杂，但有一点是清楚的：它应该具有现实约束性和理想导向性的双重特质。

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