空气取样 kōngqìqǔyàng air sampling Definitions Defs Origin Strokes Stroke Words Sentences Sents 空气取样 空氣取樣 kōngqìqǔyàng air sampling The process of collecting samples of air for testing or analysis
空气取样 空氣取樣 kōngqìqǔyàng air sampling The process of collecting samples of air for testing or analysis
