Disconnect the gauge glasses or fit a blind flange between them.
拆开水位玻璃管或者在两者之间装上盖板.
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The open end of the pipe or equipment is sealed with a blind flange.
管道或设备的敞开端用盲法兰封堵.
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The blind flange is a solid device resembling a flange with no hole in it.
盲法兰是实心设备,是无孔法兰.
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