Tannin has been extracted from acer truneatum bunge with the mixed solvent of acetone/water and its cationic modification has been carried on with formaldehyde,dimethylamine and chlorbenzyl. 采用丙酮-水的混合液提取元宝枫翅果中单宁,再利用甲醛、二甲胺和氯化苄对提取的单宁进行阳离子改性。
Study on the VA Mycorrhizae of Acer truncatum Bunge. 元宝槭VA菌根的研究
Bung the newspaper over here, will you? 你把报纸扔过来，行吗?
Just bung in some old bricks to fill up the hole. 只要填些旧砖就可以补上这个洞。