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...
Usefulness includes the fact the negatives have been calibrated.所谓有用,是指在底片上要有标度.The flexible diaphragm is connected to a plat cantilever - calibrated spring.柔韧的膜片一扁平的悬臂校正弹簧相连....a calibrated hypodermic syringe.标定精确刻度的皮下注...
The rate constants of radical and electrophilic addition to alkenes are dominated by different factors.烯烃的自由基加成和亲电加成速率受不同的因素控制.These should be four undetermined constants in the displacement function.位移函数中应有四个未定常数.Some w...
Kathryn winked mischievously.凯瑟琳淘气地眨了眨眼睛。He mischievously looked for a chance to embarrass his sister.他淘气地寻找机会让他的姐姐难堪.Also has many a dream kindheartedness, is loves mischievously small lovable.又有着多啦a梦的好心肠, 是爱调皮的小可爱....
The artificial sweetener sorbitol has a laxative effect...人工甜味剂山梨糖醇有通便作用。Some laxative drugs such as magnesium sulfate , Bisatin, phenolphthalein, glycerol etc for common use were introduced.介绍了几种治疗慢性便秘的药剂,包括:硫酸镁, 比沙啶,酚酞...
They were the earliest poets whereof there is record.他们是有记载的最早的诗人.Solomon knew whereof he spoke.所罗门知道他讲什么.In acknowledgement whereof I have hereunto affixed my signature.下面是我的签名,确认我的誓言....