检查控制盘内外部各操作和自动元件有无异常，各操作用防护开关是否关闭或者在停止位置。
Examine the control panel, operating instrument and auto components, all the protection switches are on OFF position or STOP position.
各种各样的装置都需要进行通断性检查，包括电缆成套件、印制板和连接器，以确保这些元件具有预期的连续通路。
Continuity checks are typically performed on a variety of devices, including cable assemblies, printed circuit boards, and connectors, to ensure these components have a continuous path where desired.
安装，检查，更换或修理电线，插座，开关箱，管道，馈线，光纤和同轴电缆组件，照明灯具和其他电器元件。
Install, examine, replace or repair electrical wiring, receptacles, switch boxes, conduits, feeders, fibre-optic and coaxial cable assemblies, lighting fixtures and other electrical components.
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