Run a test to see if the valve works before installing and using it.
安装使用前应进行启闭试验，查看是否正常。
At last, introduce the installing and configuring of development environment, and test online experiment module.
最后给出了本系统开发环境的安装、配置和测试的方法。
At last, introduce the installing and configuring of development environment, and test online experiment module.
最后给出了本系统开发环境的安装、配置和测试的方法。
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