多机集中控制：用一台集中控制器可以对多台主机进行集中控制，根据系统负荷及个单元运行时间决定主机工作状态。
Multi-centralized control: The controller can be a focus of many central control console, according to system load and run-time units decide the host job status.
单元测试不处理数据库、文件系统或任何可能延长测试运行时间的内容；因而，从第一天就可以编写单元测试。
Unit tests don't deal with databases, file systems, or anything else that would tend to make tests run longer; consequently, unit tests can be written from day one.
由于这些测试比真正的单元测试运行时间长，因而不能一直运行它们。
Because these tests take longer to run than true unit tests, you may find that you can't run them all the time.
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