By testing the tar and smoking nicotine of tobacco leaves of flue-cured tobacco 40 grading standard, a set of complete analytical data have been got.是什么意思_By testing the tar and smoking nicotine of tobacco leaves of flue-cured tobacco 40 grading standard, a set of complete analytical data have been got.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句