Boiler is an indispensable power-equipment in manufacturing process of chemical industry,petroleum refining,power industry,papermaking,sugar industry.It is related to whether the enterprise can give regular production, the drum water level is the most important target in boiler’s running,if the level is too high or low,it will affect the safty and economical efficiency in the operation,so we must control it strictly.
绝对原创翻译.