比色法涉及氟离子对预先形成的颜色的消色作用.The colorimetric methods involve the bleaching of a preformed color by the fluoride ion.用香草醛-冰醋酸比色法测定西洋参中总皂甙的含量.The content of ginsenoside in Panax quinquefolium L was determined by colorimetry.方法: ...
He said he would come, and sure enough he came.他说过要来, 果然,他来了.He will come sure enough.他必来无疑.We found the English treacle pudding too good to resist. Sure enough, it was delicious.我们觉得英国糖蜜布丁太好吃了，令人无法抗拒。的确非常美味。...
Many cottages are a home from home, offering microwaves, dishwashers, tvs and videos.很多度假屋都像自家一样，里面有微波炉、洗碗机、电视机和录像机。Today we have radios, TVs, and a whole host of gadgets powered by electricity.今天我们有收音机、电视机和一大堆小型电器。Most ...
Lulled into a false sense of security, we eagerly awaited their return.我们被一种虚假的安全感所麻痹，急切地等着他们回来。They lulled her into a false sense of security.他们哄骗她,使她产生一种虚假的安全感.The movement of the train lulled me to sleep.火车轻微的震动催我进入梦乡...