Like the counting function, when several aggregations with grouping keys are used in a rule, the group and count operations must be cascaded as shown in figure 14.

与计数函数类似，当在一个规则中使用多个具有分组关键字的聚合，对分组与计数操作必须进行级联，如图14所示。

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As a rule, code compiled with full optimization can be difficult or impossible to debug, making it very difficult to identify bugs that may be causing the system to function incorrectly.

通常，经过完全优化的编译代码很难或者几乎不可能进行调试，这就加大了发现那些造成系统功能错误所在的难度。

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As a high technical and special administrative rule, technical standard actually exerts the same function of law.

作为一类具有高度技术性专业性的行政规则，技术标准在实质意义上发挥着法的作用。

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