车间空气中丁醇的直接进样气相色谱测定方法: workplace air-determination of butyl alcohol-direct injection gas chromatographic method
叔: Ⅰ名词1.(叔父) father's younger brother; uncle2.(称呼跟父亲辈分相同而年纪较小的男子) a form of address for a man slightly younger than one's father; uncle 短语和例子王大叔 uncle wang3.(丈夫的弟弟) husband's younger brother4
