使用资源定义框架（请参阅 参考资料）的“三重表示法”，还可以按如下方式表示此业务信息模型元数据

Using the "triple notation" of the Resource Definition Framework, (see Resources), this business information model metadata can be also represented as follows

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的法向量似乎是指向外部。，And, the, normal, vector, to, s, seems, to, be, pointing, out wards, everywhere。，如果我们有一个法向量指向外部的封闭曲面，并且我们要求出它的一个通量积分，那么我们可以用一个三重积分来代替这个通量积分。

S if we have a closed surface with a normal vector pointing outwards, and we want to find a flux integral for it, well, we can replace that with a triple integral.

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