Shiro还支持一些辅助特性，如Web应用安全、单元测试和多线程，它们的存在强化了上面提到的四个要素。
Shiro also supports some auxiliary features, such as web application security, unit testing, and multithreading support, but these exist to reinforce the above four primary concerns.
本文运用边界单元法对低肋管的强化传热效能进行了数值计算。
A numerical calculation of enhanced heat transfer efficiency of LFT is finished in this paper by the boundary element method.
前处理单元在两个模式，即兼性生化模式与生物强化絮凝模式之间转换。
There are two modes in the preceding process, which are facultative biochemical mode and biologic enhanced flocculation mode.
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