The hydrogenation of diene compound and carbonyl group with yeasts was studied.对几种酵母细胞催化双烯和羰基的加氢反应作了一些初步研究.Food which is kept too long decays because it is attacked by yeasts, molds and bacteria.保存得太久的食品会变坏,是因为受到酵母菌, 霉菌和...
我们将乘汽艇到怀特岛。We'll make a trip by launch to White Island.蒂姆·鲍威尔曾是汽艇比赛冠军。Tim Powell is a former champion powerboat racer.汽艇穿过激流,绕过险滩.The motorboat cut across swift currents and skirted dangerous reefs....