The hydrogenation of terpineol to dihydroterpineol catalyzed by Raney Nickel modified by potassium borohydride was studied. 研究了以硼氢化钾修饰的雷尼镍催化剂催化松油醇加氢制备二氢松油醇的反应.
B : Yes. By the way do you often surf the Net?是的,顺便问一下,你经常上网 吗 ?I sometimes get up at three or four in the morning and I surf the net.“我有时候早上三或四点起床,在网上冲浪. ”...surf rolling onto white sand beaches.涌上白色沙滩的激浪Holidaymakers c...
He used to see them at the biweekly meetings.他以前总是在两周一次的会议上看到他们。...Beverage Digest, the industry's biweekly newsletter.《饮料文摘》，饮料业的双周业务通讯Students meet biweekly to discuss their experiences.学生们每两周会面一次，讨论他们的见闻。The grou...
这个实用的基础模型较为简略地解释了人类的行为。This basic utilitarian model gives a relatively unsophisticated account of human behaviour.简略的教育体制指南a rough-and-ready guide to the education system他提供的材料过于简略.The material he supplied is too sketchy...