按照软件测试的全程，主要从单元测试、集成测试、系统测试等多个层次进行研究和探讨。
The study was carried out in the following aspects according to software test procedure: unit test, compositive test and system test.
以稳定运行的全程硝化的生物膜反应器的一个反应单元为研究对象，通过外加氯实现对硝化反应中两类细菌的选择性抑制。
In a cell of biofilm reactor for whole-run nitrification, chlorine was added to achieve the selective inhibition to two kinds of bacteria in nitrification.
提出了由数码相机和网络单元组成的网络相机的理念以及基于此的可视化全程监控系统的设计。
Referring to the monitor system of expressway, this article puts forward the theory of "network camera", which is composed with digital camera and network unit.
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