The reaction conditions on oxidation of 2 - methylpyridine to 2 - acid by oxidation of potassium dichromate were studied. 研究了以2-甲基吡啶为原料,以重铬酸钾为氧化剂,利用化学氧化法合成 2- 吡啶甲酸的反应条件.
On the whole she had lived modestly, with a notable lack of ostentation.大体上说，她生活俭朴，不事张扬。Do you reject his ostentation and glories in this world?你们会拒绝他对于这个世界的狂妄和自大 吗 ?I thought that one is exaggerates; second, wins ostent...
Computerised design output may be translated into sectional drawing and plans.用电子计算机计算的设计输出可以转化成剖面图和平面图.The software is a critical component of a computerised system.软件是计算机系统的重要组成部分.You seem to be in favour of a computer...