A Continuous Integration server constantly checks the code out of source control, builds it, runs the unit tests against it, and reports any build failures to the developers, usually via E-mail.

持续集成服务器不断检查不受源控制的代码，执行构建，对它运行单元测试，并通常通过电子邮件向开发人员报告所有构建故障。

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Writing your software with inversion of control in mind also makes unit testing much, much easier, because you can swap out real implementations for mocks in your tests.

在内心建立用控制反转编写软件的思想，会使得进行单元测试更加容易，因为你可以替换真实实现而在测试中进行模拟。

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Electricians in this unit group lay out, assemble, install, test, troubleshoot and repair electrical wiring, fixtures, control devices and related equipment in buildings and other structures.

此单元组的电工铺陈，组装，安装，测试，故障排除和修复建筑物和其他结构内的电线，灯具，控制设备及相关设备。

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As it turns out, the crux of the invention was head-slappingly simple: though a patent-pending idea Smith calls "get out of the way control, " the unit measures the load on each joint as its operator moves about, and figures out the direction it needs to move in 3-D space to literally move out of the way.

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Does this point to the possibility of a unit that was out of control?

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Together, the camera and laser sensors monitor the white lines and, if the car strays out of its lane, an electronic control unit attached to an electric power-steering unit corrects it.

ECONOMIST: Motoring