The calculation method of some important parameters, such as the heat transfer coefficient, dead time and so on of the closedsteam tube rotary dryers was proposed.
提出了密闭型蒸气管回转干燥机传热系数及停留时间等主要工艺参数的计算方法。
2
A valve that was supposed to be open, to allow the heat and steam to escape, was closed.
一个本应打开的阀门被关上了，这个阀门控制着热量和蒸汽的泻出。
3
With it closed the boiler should not make much steam at all.