任选项包括可锁门，台式电源，数据端口，和可扩展电源。

Lockable doors, desktop power, data ports, and a scalable power supply are optional features.

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因此﹐在给敏感设备焊锡之前﹐必须将台式电源与测试电路断开。

So disconnect the bench top power supply from circuit under test before soldering sensitive device.

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在不使用笔记本、台式机和手机时，把电源线拔掉。

Unplug laptop, desktop and cell phone power cords when not in use.

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