The carbonization of exrtacting constituents of preheated Shenfu noncoking and Liulin dominant coking coal has been studied. 对预热神木不粘煤及柳林主焦煤中不同溶剂抽提组分的碳化特性分别进行了比较研究。
Frame of the heating furnace like beer pasteurism sterilizer.Have an aluminium ingot preheat box.The box's length is near half a burdening span. 加热炉结构类似啤酒杀菌机，有一个铝锭预热箱，预热箱长度接近半个配料跨。
In the compression moulding technology, preheat and prepressing procedures are added to improve the flowability of the bond and physical and mechanical properties of the product. 在压缩模塑工艺中，增加预热、预压工序，提高粘合剂的流动性和产品的物理机械性能。
There is a iodin gallium lamp preheating process warming phase of the luminous intensity of the lampdimming was too low to preheat phase print, there is not enough exposure occurs. 碘镓灯有一个预热历程，预热阶段的的灯管不收平强量很矮，预热阶段晒版会不入现曝平不敷的本体。