Quality control is also typically eased by using content from databases because the data entry programs can check the input more easily than an HTML editor can for static pages.
使用来自数据库的内容通常还会简化质量控制，因为与用 HTML 编辑器检查静态页面相比，数据输入程序可以更容易地检查输入。
If static NAT alone is configured and no entry is found, it sends the packet without translation.
如果仅仅是配置了静态NAT且没有这样的条目存在，路由器就会不转换地址而直接转发数据包。
Perfect property: Locating a table entry requires o (1) time-that is, at most, one string comparison is required to perform keyword recognition within the static search set.
perfect property：查找时间复杂度为o(1)的表条目—就是说，至多需要一个字符串比较执行静态搜索集中的关键字识别。
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