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.
Often misspells receive by transposing the e and the i.常因颠倒e和i的位置而错拼.Except Operatic Aria, transposing is allowed or solo pieces.除歌剧咏叹调外, 独唱歌曲允许移调演唱.There is an argument for transposing the passing of MCa and the FCd if ...
她 ( 用金线 ) 在垫子上绣花.She embroidered flowers on the cushion ( in gold thread ).她在毛巾上绣花.She embroidered a flower on a towel.她在垫子上绣花.She embroidered flowers on the cushion....
●滚筒开槽.滚筒的高、速端带有通风式气胎离合器.The chains are pressure lubricated.介绍了气胎离合器的工作原理 、 特点及安装调试等.This paper introduced the working principle, characteristics, erection and adjustment of pneumatic - tyred clutch.我们公司主要生产轻卡轮胎, 子午轮胎,农用轮...