“chestnut shell”簡單造句，chestnut shell造句子

The applications of natural clarifying agent to the refining of the brown pigment extracted from chestnut shell

The extraction of the brown pigment from chestnut shells and study on its properties

Study on adsorptive performance of heavy metal chromium(Ⅵ) by chestnut shell

Study on the dyeing behaviour of silk fabric with natural dyestuff from chestnut shell