The soil proved too infertile to sustain real pasture or arable crops.这土壤被证明太贫瘠,不能真正用作放牧或种植作物。The cash dividends they get from the cash crop would sustain them during the lean season...从经济作物中获得的收益能帮助他们度过不景气的时期。...a singe...
There's a sufficiency of drama in these lives to sustain your interest.这些人的生活充满了戏剧性,总能让你兴趣盎然。Their defense markets are too small to sustain economically viable production runs.他们的国防市场太小,就经济可行性而言不足以维持生产。The people wh...
For protein crystallization, the main impact of precipitant is on the solvent.对于蛋白质的结晶,沉淀剂主要在溶剂上产生作用。Liquids may not be too viscous or be susceptible to crystallization.液体不能太粘稠,也不能易结晶。The wires usually have a tendency to...