Water precipitates camphor from its alcoholic solution.水能把樟脑从其酒精溶液中淀析出来.Precipitates are usually collected by centrifugation at intervals.常常是用离心法分段收集沉淀的.This important carbide precipitates both inter and intragranularly....
In Norman England, the greyhound was a symbol of nobility.灵犭是在诺曼时期的英格兰是高贵的象征。He gaged a costly ring upon the speed of his greyhound.他押上一只昂贵的戒指以示他猎犬的速度.You can find Greyhound almost in every city, big or small.他们也可以通过车窗看见...