这些不稳定性促使琼脂糖和琼脂糖 -- 丙烯酰胺凝胶的发展.These liabilities prompted development of agarose and agarose - acrylamide gels.琼脂糖是一种天然的直链多糖.Agarose is naturally linear polysaccharide.琼脂是一种从红藻中提取的复杂的多糖.Agar is complex polysaccharide, extr...
这书橱装有50册书,但它能装下100册.The bookcase contains fifty volumes but holds a hundred.这书橱很不结实,装不了这么多书.This bookcase is too unstable to hold so many books.你分组件买这个书橱,再把它们卡榫对准组合在一起.You buy this bookcase in sections and slot them toge...
An olive-coloured tent stood within a thicket of trees.一顶橄榄色帐篷扎在树丛当中。The novel is a thicket of literary references.这本小说纯粹是由一堆文学参考书胡乱拼凑而成。A thicket makes good cover for animals to hide in.丛林是动物的良好隐蔽处....