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...
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...
这是一道肉食主义者爱吃的素菜。This is a vegetarian dish that carnivores love.素食者认为吃肉食是造恶业。Vegetarians believe that eating meat is bad karma.肉食已经好了,蔬菜还未做好.The meat's ready but the vegetables still are not done....
这个男人和他的儿子马克曾沿绳索爬下过这些陡峭的悬崖。The man and his son Mark had abseiled down the sheer cliffs.一团油腻的黑色烟雾飘到悬崖顶上。A pall of oily black smoke drifted over the cliff-top.他们沿着村庄周围的陡峭悬崖往上爬。They climbed upward along the steep cliffs surr...
在其全盛时期，该制片公司夸口说，他们旗下的明星比天上的星星还要多。In its heyday, the studio's boast was that it had more stars than there are in heaven.帕森斯夸口说,单是胜利大厦,挂出的旗子就有四百米那么长.Parsons boasted that Victory Mansions alone would display four hundr...