保存得太久的食品会变坏,是因为受到酵母菌, 霉菌和细菌的侵袭.Food which is kept too long decays because it is attacked by yeasts, molds and bacteria.防止啤酒变坏的主要方法是用纯酵母菌株发酵.The principal methods of avoiding spoilage are the use of pure yeast strains as ...
这标志着反帝国反封建的斗争取得了初步胜利.This marked an initial victory for the struggle against imperialism and feudalism.金融资本家从封建的钱庄主人、商人演变而来.Financial capitalists derived from feudalistic private bank owners and merchants.难道我脑中还有如此封建的残物么...
The programmer forms the heart of the process chromatograph.程序控制器是色谱仪的关键部件.The technique is known as adsorption chromatograph.这种分析技术称为吸附色谱.Figure B shows a scheme of a mass spectrometer coupled to a gas chromatograph.B是气...