The electric appliance equipment should earth - plate, the wire should reliably insulate, and install in the conduit.
电器设备应接地, 电线应可靠绝缘, 并装在蛇皮袋内.
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Concrete rock earth plate dam of - short cement is a new type of dam in hydraulic structures.
超贫胶结混凝土土石面板坝是水利工程中的一种新坝型.
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