用“Chinese lac”造句大全,Chinese lac造句
It was found that the content of soft resin in Chinese lac was higher than that of Indian lac.
5 chromatographic zones were separated from Chinese lac food pigment using column chromatography.
It was found that the content of soft resin in Chinese lac was higher than that of Indian lac.
5 chromatographic zones were separated from Chinese lac food pigment using column chromatography.