空气取样 kōngqìqǔyàng air sampling Definitions Defs Origin Strokes Stroke Words Sentences Sents 空气 空氣 kōngqì noun air the gas mixture surrounding the earth, primarily composed of nitrogen and oxygen取样 取樣 qǔyàng to sample to take a sample; to select a small part of a larger whole to use as a representative specimen
