high grade coal 中文意思是什麼
high grade coal
解釋
高級煤-
Usage : for making pitch felt, construction waterproof course, high - grade pitch paint etc, and it is also the material for making pitch tar or retarded tar and modified pitch, it is the bond for making mould coal ( coal ball ) and carbon material, timber anticorrosion paint and road pavement
用途:用於制油氈、建築物防水層、高級瀝青漆等,也是制取瀝青焦或延遲焦及改質瀝青的原料,做型煤(煤球)及炭素材料的粘合劑,木材防腐油及鋪路材料。 -
Progress of research in preparation of high grade activated carbon precursor by carbonization of coal
高質量煤基活性炭炭化料的制備研究進展
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