This paper advances the preparation method of erucamide by direct ammonolysis of rape oil. sol - vent crystallization.本研究提出菜籽油直接氨解、溶剂脱脂、蒸馏预分离、溶剂结晶提纯制取芥酸酰胺的方法....
Use both hands to scoop up the leaves.用双手捧起叶子。You scoop up some of Dennis's blood, to splash on Watson's shoes later.你弄了些丹尼的血, 然后撒在了沃森的鞋上.The scoop - up was the key phase during a scooping cycle.3个区间中,铲取区间是整个作业...