干燥无灰基
- 网络dry ash free;dry ash-free basis;daf;dry and ash free
干燥无灰基-
在干燥无灰基碳含量45%～90%之间，于80%～85%区域多环芳烃的总量最大。
Total content of PAH appeared in the region 80 % ~ 85 % of dry and ash free carbon content .
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本文采用差示扫描量热仪（DSC）对14种含有不同挥发分的中国煤，在20～170℃范围内测定了煤的比热，并校正为干燥无灰基煤的比热。
The specific heat of fourteen types of Chinese coals with different volatile matter contents were measured in the temperature range of 20 ~ 170 ℃ with the differential scanning calorimeter ( DSC ) .