In the epoxidation, chloroform and t butanol gave the best results.在环己烯环氧化反应中, 以氯仿和叔丁醇为溶剂时,环氧化反应的结果最好.The definilion of kauri - butanol value and its determination method is described.文章叙述了“溶剂汽油”一词的由来,K. B.值的定义及测定方法.The ...
Etherification of butanol with ethylene oxide by a new style solide acid catalyst is investigated.研究了丁醇和环氧乙烷在一种新型固体酸催化剂上的醚化反应.The purified rice amylose and amylopectins were obtained by n - butanol recrystallization meth...
她是个技法娴熟的书法家。She is a skilled calligrapher.赵之谦 ( 1829-1884 ) 是书法家兼画家.Zhao Zhiqian ( 1829 - 1884 ) was both a calligrapher and a painter.他的儿子 王献之, 也是非常有名的书法家.His son, Wang Xianzhi , was also a famous calligrapher....
基督教女青年会的会员members of the YWCA他确实想好好履行作为教女的职责.He really wants to fulfil his role as goddaughter properly.基督教青年会及基督教女青年会并开办了5所酒店 式 的国际宾馆.Eight international hotel - type guest houses are managed by the YMCA and YWCA....
She powdered her face and applied her lipstick and rouge.她往脸上搽了粉，抹了口红和胭脂。She was attended by servants in splendid livery and powdered wigs.她由穿着华丽制服、头戴扑粉假发的仆人们伺候着。There are only two tins of powdered milk left.就剩下两听奶粉了。...