Lower-heat-value gas 低热值气体燃料
The lower the Infrared Transmission Value, the lower the corresponding Solar Heat Gain Coefficient.
愈低的红外线值，太阳能辐射就愈低。
With preheating temperature enhancing, the peak value also increase, but cooling velocity decreases, resulting from the decrease of heat conductivity of sample lower surface.
随着预热温度的提高，电阻峰值也相应增大，但是样品下表面的热导出率下降，冷却速度下降；
The results show that MSW have high content of volatiles and low heat value, and the heat value of MSW is much lower than that of coal.
研究表明，城市生活垃圾热值较低，但挥发分较高，其热值远低于燃煤。
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