The technology of preparing sodium - copper chlorophyllin from carrot leaves was studied.由胡萝卜樱叶提取叶绿素并经皂化、铜代及成盐反应制备叶绿素铜钠.The overall yield of sodium copper chlorophyllin is 41.3 %.全过程叶绿素铜钠盐的收率可达41.3%.GLUCOSE - FRUCTOSE SY...
naval ordnance海军军械An Ordnance Survey grid reference gives the position of a place to within 100 metres.全国地形测量局的地图坐标标示某地的位置精确到100米以內.With cargo projectile by the world , serious problem of unexploded ordnance arisen.子母弹药的...
Micro - landform and micro - climate could exert great influence on conductor icing.微地形微气候对导线覆冰有很重大的影响.Condition of special landform, grade water natural resources, suit piscatorial development.非凡的地形 、 优质的水资源条件, 适合渔业的发展....
The offender apologized when he sobered up.冒犯者醒酒后道了歉.He suddenly sobered.他突然严肃起来。The bad news sobered us a while.坏消息使我们冷静了一会儿。The news sobered all of them.那消息使他们全都冷静下来.Later she sobered down and married somebody else.后来她...
人们早已知道，如果材料的表面积足够大，可引起催化反应。It had been known for some time that chemical reactions can be catalyzed by materials with large surface areas.它们对被它们催化的反应有很强的专一性.They are highly specific for the reactions that they catalyze.在...