Aphid count on plants in fields do not correlate with virus spread in the same fields.田间植株蚜数与同块田内病毒的扩散程度间无相关性.Since aphid population may become resistant to organophosphorus compounds, avoid excessive spraying.因为蚜虫类对有机磷化...
The aphid is now laying waste to the wheat and barley fields.蚜虫正在毁掉一片片的小麦和大麦田地。Since aphid population may become resistant to organophosphorus compounds, avoid excessive spraying.因为蚜虫类对有机磷化物能产生抗性, 所以要避免过多的喷洒.Aphid count ...
小母牛在牛栏里吼叫。A heifer bellowed in her stall.怀小牛的小母牛最适合这项工作.In - calf heifers are admirable for this work.他用12头山羊换了我的1头小母牛.He swapped me a dozen goats for one of my female calf....
在催化剂存在下,用双氧水氧化乙二醛溶液快速合成了乙醛酸.Glyoxylic acid was rapidly synthesized by catalytic oxidation of glyoxal with H 2 O 2.利用报废的液体推进剂硝酸-27S和乙醛制备乙二醛.Glyoxal is prepared with waste liquid propellant HNO 3 - 27 S and ethanal.乙二醛 、 乙...
远视者的苦恼则起因于正好相反的问题.People who are farsighted suffer from just the opposite problem.散光可发生在除近视和远视.Astigmatism can occur in addition to nearsightedness and farsightedness.目的应用角膜地形图仪研究远视性屈光不正儿童的角膜前表面光学特征.ObjectiveTo investiga...
Jovial ladies chivvy you into ordering more than you can eat!热情的女招待会一再推荐,最后点的餐多到吃不下!She avoided the issue by ordering a turkey sandwich.她点了份火鸡三明治,以此来避开这个重要问题。When we're out he gets really bossy and starts ordering m...