The temperature of tunnel wall, coefficient of unsteady heat exchange and thickness of heat-adjusting layer at constant air temperature in a tunnel are calculated.
求算了巷道风温恒定时岩体壁面温度、岩体与空气的非稳态热交换系数和围岩调热圈厚度。
During the process of reducing, in case of constant diameter reduction, the major elements responsible for tube wall increase are the rolling temperature and the stretch factor, etc.
钢管在减径过程中，减径量一定时，影响其增壁量的主要因素是钢管的轧制温度和张力系数等。
After a constant current, the temperature of the tungsten filament is increased, and the heat is transferred to the cell wall by the carrier gas around it.
在通过恒定电流以后，钨丝温度升高，其热量经四周的载气分子传递至池壁。
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