Before leaving I attended the 47 th commencement of Cornell on June 16, 1914.离校之前,我还在1914年6月16日参加了康乃尔的第47届毕业典礼.Applications with a full curriculum vitae and two references should reach the Principal by June 12th.申请书连同完整个...
Taking p chlorotoluene as raw material , 2,4 Dichlorotoluene was synthesized via catalytic chlorination process.以对氯甲苯为原料, 经催化氯化制取2,4二氯甲苯.In the reaction of chlorination, carbon tetrachloride was used agent, and chlorine ...