A series of qualitative experiment of roselle calyx red pigment was done so that the chemical structure of the pigment was appraised preliminarily.是什么意思_A series of qualitative experiment of roselle calyx red pigment was done so that the chemical structure of the pigment was appraised preliminarily.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句