这是冷却,滤出沉淀的二氯碘化铯.It is cool and filter the precipitated caesium dichloroiodide.常常是用离心法分段收集沉淀的.Precipitates are usually collected by centrifugation at intervals.最后探讨了固化沉淀的反应速率.And the reaction rate the precipitate solidifi...
雷电所劈的正是高山之巅.It is the tops of the mountain that the lightning strikes.峡谷内山高路险 、 刀削斧劈的悬崖随处可见.Steep mountain valley, cutting pole axe cliff can be seen everywhere....
The gills of fishes are analogous to the lungs in terrestrial animals.鱼类的鳃与陆上动物的肺类似.Evolution can explain why human embryos look like gilled fishes.进化论能够解释为什么人类的胚胎看起来象除去了内脏的鱼一样.Birds, fishes, and insects lay eggs.鸟下蛋, 鱼和...
Marketing of processing machines for lathing, planning, milling, grinding and drilling metals.经销车, 刨, 铣, 磨,钻等金属切加工设备.The most common finishing operations are mechanical, such as milling, grinding, or polishing with abras...