英语词汇“mean annual concentration”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	mean annual concentration
释义	mean annual concentration 平均浓度
随便看	floor arch Floorarchetype floor arch girder floor ceiling floor ceiling assembly floor /ceiling assembly floor cell floor cells floor charging machine floor chart floor chisel floor area floor-area floor area measurement floor area of a dwelling floor area of a room floor area of building floor area ratio floor-area ratio floor area ratio awards floor-area ratio of buildings floor a room floor arrangement floor art floor assembly