提出了一种干柱层析法 分离提纯 试剂对氨基偶氮苯的新方法.A new method for separating and purifying p - AAB ( p - aminoazobenzene ) by dry - column chromatography is developed.偶氮苯侧链液晶聚合物.Azobenzene side - chain liquid crystalline.必须通过偶氮,(苯)酚类,有机氯试剂,...
We got up at sunrise .我们在日出时起床。The sunset rivalled the sunrise in beauty.日落与日出的景色一样美.By sunrise tomorrow we'll be on our way.明天天亮前我们就将赶路。The name Easter comes from Eostre － a goddess of spring - time and sunrise.复活节...
Gifts from enemies are dangerous.敌人礼，藏危险。Clerk : Well , Canadian Gifts is on the lower level. It's across from Prime Time Video Rentals.噢, 礼品店在楼下, 在黄金时刻录像出租屋的对面.There are wide assortments of gifts to choose from.那儿有...