英语词汇“density grades”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	density grades
释义	density grades 基本例句密度级 The UV photooxidation characteristics of different density macerals of Shenfu coal have been studied in a fixed bed photoreactor.摘要在固定床光氧化反应器中，对神府煤不同密度级组分进行了紫外光光氧化研究。
随便看	PROTOCARDIINAE Protocaris protocarnivorous protocarpic tuber protocaryon protocaseose protocatechnic acid protocatechualdehyde protocatechualdehydes protocatechuate Protocatechuate 3 Protocatechuate 3,4 Dioxygenase protocatechuate 3,4-dioxygenase protocatechuate-3,4-dioxygenase Protocatechuate 4 Protocatechuate 4,5-dioxygenase protocatechuate 4,5-oxygenase Protocatechuate decarboxylase protocatechuate dioxygenase protocatechuate oxidase Protocatechuate oxygenase protocatechuates protocatechuialdehyde protocatechuic protocatechuic acid