另一方面，低温压缩空气在热交换器里温度得到回升，使排气管道外壁不致因温度过低而出现结露现象。
On the other hand, cryogenic compressed air in the heat exchanger temperature rise, so that the exhaust pipe is not caused by low temperature and dewing phenomenon.
环保、冶金及建材行业余热利用中的热交换器，常因管内污垢系数上升、换热面粘附粉尘而失效。
Heat exchanger in the heat reuse of environmental protection, metallurgy and construction materials often loses effectiveness because of the increased dirt coefficient.
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。
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.
支撑块2起支撑作用，以使热交换板3的面与面之间以一定的间距互相平行。
The supporting blocks 2 have a supporting function, so that the surfaces of the heat exchange plates 3 are parallel mutually in a certain distance.
支撑块2起支撑作用，以使热交换板3的面与面之间以一定的间距互相平行。
The supporting blocks 2 have a supporting function, so that the surfaces of the heat exchange plates 3 are parallel mutually in a certain distance.
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