This is a fractionating tower.这是一座分馏塔.As the solution to be purified is heated, its vapors rise to the fractionating column.当要被提纯的液体受热时, 它的蒸汽上升到分馏柱.The utility model relates to a continuous thin film evaporation device p...
Guderian leaned forward, his eyes narrowing in that infuriating half - grin.姑德里安向前探了探身子, 恼怒地眯起眼睛, 皮笑 肉不笑.I was in the middle of typing when Robert rang. It was infuriating!我正在打字的时候罗伯特来电话。真叫人生气！Steve accelerated with infu...
Cold - blood vertebrate has formatted multi - cold adaptation artifice in the various habitation environment.冷血脊椎动物在多种多样栖息环境中形成多种耐寒策略.This part of the vertebrate brain has two divisions, the medulla and the cerebellum.脊椎...