A knife switch with iron shell shall be installed in the powersupply line, which is exclusively for this oven, and the outer plate shall be grounded.
应在供电线路中安装铁壳闸刀开关一只，供此箱专用，并将外壳接地。
2
In the circulating water direct-flow supply systems of large thermal power plants in todays China, the circulating water cleaning devices are basically plate and frame rotary strainers.
目前在我国大型火力发电厂循环水直流供水系统中，循环水的清污设备基本上采用板框式旋转滤网。
3
The dispatching and managing targets of the railway remote control system is a substation of laboratory, the drawing powersupply facilities of two simulation substations and a simulation plate.