The most abundant phospholipid in many cells is phosphatidyl ethanolamine or cephalin.在许多细胞中,含量最高的磷脂是磷脂酰乙醇胺或脑磷脂.OBJECTIVE To study and improve the synthesis of liposome excipient phosphatidyl ethanolamine.目的研究并改进脂质体辅料磷脂酰...
N - hydroxyethylpyrrolidone ( NHP ) was synthesized from � � - butyrolactone and ethanolamine on Y molecular sieve catalyst by two steps.以改性Y分子筛为催化剂,γ-丁内酯和乙醇胺为原料,采用γ - 丁内酯法两步合成N - 羟乙基吡咯烷酮 ( NHP ).Surface active propertie...
那列火车以一小时九十英里的速度飞速驶过车站.The train rocketed through the station at 90 miles an hour.温度将近九十度.The mercury stood at nearly 90℃.百分之九十五的屏幕都包含电脑制作的图象.95 percent of the screen contained images made by computers....
我们听到了谄媚的笑声。We heard the sound of sycophantic laughter.他有卑屈谄媚的神情,但是声音却十分粗沙.He had a cringing manner but a very harsh voice.钱德勒黄鼠狼似的脸上现出了谄媚的笑容.Chandler's weasel face screwed into an obsequious smile....
The microcapsules are suspended in a substance similar to vegetable cooking oil.微型封装块悬浮在像食用油那样的物质中.Different control - released fragrance microcapsules with different release properties were prepared in - situ polymeriza...
水库逐渐干涸，农民开始背井离乡。Reservoirs are drying up and farmers have begun to leave their land.这个水库是通过在布莱斯河上筑坝形成的。This reservoir was formed by damming the River Blith.村民用管道从水库引来饮用水。The villagers piped in drinking water from the res...