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	double channel ditchw-type ditch double channel duplex double-channel duplex double channel duplexdcd double-channel echo well depth sounder double-channel echo well sounder double-channeled double channel febrile disease double-channel haptic interaction system double channel impeller double-channel impeller double channel impeller pump double-channel impeller pump double-channel instantaneous signal recorder double-channel Mossbauer spectrometer double-channel nitrogen laser double channel oil pressure self-locking valve double-channel oscilloscope double channel pump double-channel pump double-channel pumps double channel RDC double channel rolling double channels doublechannel screw