英语词汇“classification of reserves, category of reserves”的翻译、意思、用法、释义-英汉汉英双解词典

单词	classification of reserves, category of reserves
释义	classification of reserves, category of reserves 储量级别；区分和衡量储量精度的等级标准。我国煤炭储量，按精度依次为A、B、C、D四级。
随便看	piping mechanism piping mode piping network PIPING NETWORK PROJECTS UNDER CONSTRUCTION piping of downstream dam piping of soil and water piping oil piping opening piping orientation piping outfitting piping package earthwork piping packing piping path piping plan Piping Plover piping plovers piping porosity piping pressure drop piping pump piping pushing piping rack piping rale piping reaction piping repair piping rink