Water line demarcation test should be carried out when starting up and adjusting the subcritical drum boiler, to certify the zero benchmark of the local water gauge.
亚临界压力的汽包锅炉在启动调试时应进行水位标定试验，以确定就地水位表的基准零位。
1 before the fire, steam boiler, should check the valve pipe, steam pipe, pressure gauge, safety valve, water level gauge, drain valve is in good condition.
蒸汽锅炉生火之前，应检查各阀门水管、汽管、压力表、安全阀、水位表、排污阀等是否处在完好状态。
1 before the fire, steam boiler, should check the valve pipe, steam pipe, pressure gauge, safety valve, water level gauge, drain valve is in good condition.
蒸汽锅炉生火之前，应检查各阀门水管、汽管、压力表、安全阀、水位表、排污阀等是否处在完好状态。
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