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.
The Government cannot expect graduates to twiddle their thumbs on the dole.政府不愿意看到毕业生领着救济金却什么也不干。Two years later he is flat broke and on the dole.两年后，他一贫如洗，靠失业救济金生活。I go back on the dole when the shooting season's f...
小鼠中的H -2 同种抗原是最强的组织相容性抗原.In mice the H - 2 isoantigens are the strongest histocompatibility antigens.小鼠肾小管的发育需要有两种分化的细胞.The development of mouse kidney tubules requires two kinds of differentiated cells.他用煤烟提取物诱发了小鼠皮肤癌.H...
I really need to brush up on my English.我确实需要提高我的英语水平.When traveling, it's important to brush up your ability to relay information.旅行时, 重要的是要梳理你的能力,以传递信息.Tony practiced a lot in order to brush up on his technology.托...
Ted hated parties, even gatherings of people he liked individually.特德讨厌各种派对，即便是他自己喜欢的人的聚会也不例外。Following the performances there were chummy gatherings in the drawing room.表演过后会在客厅举行气氛融洽的聚会。His conduct at social gatherings...