英汉词典

1.OBJECTIVE To synthesize thiamine propyl disulfide, a long-effect VitaminB1.

目的合成长效维生素B1丙硫硫胺。

2.Under this conditions, the yield of ethyl ester, propyl ester and butyl ester respectively is 87.5%, 89.2% and 91.1%.

上述条件下，尼泊金乙酯的产率为87.5% ，尼泊金丙酯的产率为89.2 % ，尼泊金丁酯的产率为91 .1 %。

3.This standard solution was accurately prepared in super-clean laboratory with iso-propyl benzene and sub-packed in 2ml ampoules.

本标准溶液以纯异丙苯在超净实验室中准确配制并分装于2毫升安瓿中。

4.The casting process and reverse osmosis (RO) properties of hydroxy-propyl cellulose acetate (HPCA) membrane were studied.

研究了羟丙基醋酸纤维素反渗透膜的制膜工艺和膜性能。

5.Through orthogonal test was designed for optimal inhibition the new compound color fixative:green tea extract 0.03%, propyl gallate 0.005%, citric acid 1.0%, VE 0.01%.

前言： 利用柠檬酸、VE、 没食子酸丙酯、绿茶提取物各自的特性，通过正交实验最终确定了最佳的新型复合护色剂组合：绿茶提取物0.03%、没食子酸丙酯0.005%、柠檬酸1.0%、VE含量0.01%。

6.The way using crude material furoic acid and propyl alcohol to synthesize propyl furoate is researched by catalyst stannous oxide. The yield is 77%.

以呋喃甲酸和正丙醇为原料，氧化亚锡为催化剂，合成了呋喃甲酸正丙酯，产率可达77% 。