Before steam admission, valve on vacuum hogging extraction line (the valve is befor hogging pipe of the Two Stage Steam Jet Ejector) should be closed (see also Two Stages Steam Jet Ejector Installation and Operation Instruction).
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释义
在蒸汽进入之前,抽真空启动管道上的阀门(启动抽汽器前的阀门)应该关闭(请参见相应的两级射汽抽气器安装使用说明书)。
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