因为有通风设备往里面输送新鲜空气，还有洒水器不断地给煤浇水以降温，所以地下既阴冷又潮湿。
The ground is cold and moist, with the chill factor amplified by ventilation fans used to blow fresh air into the mine, and the sprinkler that keep the coal dust down.
分析循环流化床锅炉运行中出现的高温再热器、二级过热器爆管和给煤系统旋转给料阀经常堵煤等问题。
The causes of SH and RH tube explosion and coal feed system jamming in the operating CFBB are analyzed.
文中说明了该系统如何使用控制器、变频器及PLC实现对给煤机给煤量的精确控制。
It explained how can the system control the coal quantity exactly by using controller, transducer and PLC.
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