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- It did not affect the weight and quality of fruit. There was no significant effcct on controlling preharvest drop with one spraying of 2,4-DPN (C_2H_2OH)_3 or 2,4-DPNa at the same time with the same concentration. 元帅在采前21天喷布一次20ppm2,4-DP,也显著的控制了采前落果,不影响单果重和果实品质,但同期喷布一次相同浓度的2,4-DPN(C_2H_2OH)_3或2,4-DPNa,则对控制采前落果无显著效果。
- EFFECT OF 2,4-DP ON CONTROLLING PREHARVEST DROP AND FRUIT STORAGE OF APPLE 2,4-滴丙酸对苹果树采前落果的控制与果实贮藏的效应
- He said he would drop her like a hot potato. 他说他会把她像烫手的东西一样迫不及待地扔掉。
- The rain is leaking in large drop through the roof. 雨正大滴大滴地从屋顶漏下来。
- Interest in the book began to drop off. 人们对这本书的兴趣开始减退了。
- A drop of blood slid down his leg. 他的腿上流着一点儿血。
- Don't forget to drop by at the gas station. 别忘了到煤气站去看看。
- He drank the wine slowly, savouring every drop. 他慢慢地喝着酒，细细品尝着每滴酒的滋味。
- I think such customs will soon drop away. 我想这些风俗不久就会逐渐消失。
- I thought I'd drop over for a drink. 我想我要来找你喝一杯。
- Drop in and see us when you're next in London. 到伦敦时顺便来看我。
- I can drop you off at normandie ave. 我可以在诺曼蒂大街让您下车。
- He drop out because of the pressure. 由于校规很严，所以他退学了。
- She reluctantly agreed to let the matter drop. 她勉强同意这事到此为止。
- I drop off and miss the end of the film. 我打了个盹儿，把影片的结尾给错过了。
- He do not drop any hint, nor do his secretary. 他没有作任何暗示，他的秘书也没有。
- I'll have a wee drop of cream in my coffee. 我要在咖啡里放一丁点儿奶油。
- If you rise with your ace, hardy have to drop. 如果你用A牌来对付，哈代就会被击落一张大牌。
- The last drop make the cup run over. 最后一滴，杯水外溢。
- Mary: Be careful! Don't drop it! 玛丽：小心点，别摔了！
