The diisobutyl dicarboxylate was prepared by using acid and isobutanol as material and acid as catalyst.以二羧酸和异丁醇为原料,用硫酸作催化剂,合成二羧酸二异丁酯.Conducting polyaniline ( PANI ) and poly - O - methylaniline ( POT ) were prepared by ...
The indisputable fact is that computers carry out logical operations.不容置疑的事实是，电脑执行逻辑操作指令。That's John Gibb, operations chief for New York Emergency Management.那个人是约翰·吉布，纽约应急管理办公室的行动总指挥官。The company closed down operat...
We were greatly honoured that Sheik Hasina took the trouble to visit us.谢赫·哈西娜专程前来看望我们，对此我们深感荣幸。The sheik in particular caused a slight stir and buzz.特别是这位酋长引起了一阵轻微的骚动和嘁嘁喳喳的声音.The sheik treated him as a friend and an equ...
Dirk's eyes flickered towards the pistol...德克的眼睛瞟向那把手枪。A television flickered in the corner.电视机在角落里时明时暗地变换着画面。Dill's eyes flickered at Jem, and Jem looked at the floor.迪尔望着杰姆眨了眨了眼, 杰姆却看着地下.The candle-light flic...