英语词汇“low grade bituminous coal”的翻译、意思、用法、释义-英汉汉英双解词典

单词	low grade bituminous coal
释义	low grade bituminous coal 低级沥青炭
随便看	safety legislation Safety legs and lift lock out pins safety lens safety lenses safety level safety-level safety level of service safety level of supply safety lever safety liability safety life Safety lifecycle safety life cycle safety life-cycle safety life design safety life period safety life-span safetylight safety light safety lighting Safety lighting apparatus for mine safety lighting fitting safety light screens safety limist safety limit