In this paper the effect of using direct heater on heat economy of sugar factories is discussed, also the quantity analysis method and calculation equations for vapor consumption are introduced.
本文讨论了直接加热器在糖厂使用对糖厂热力经济的影响，介绍了直接加热过程蒸汽消耗的数量分析方法和计算公式。
The thermal balance calculation method for the gear box of a double-screw extruder was developed to accurately calculate the quantity of heat.
为了准确的计算双螺杆挤出机传动箱的发热量，笔者提出一种双螺杆挤出机传动箱的热平衡计算方法。
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