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关注：1
2013-05-23 12:21
求翻译：一只青蛙每年能够消灭一万头害虫，每公顷投放蛙7500 头以上，基本可以控制水稻虫害。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
一只青蛙每年能够消灭一万头害虫，每公顷投放蛙7500 头以上，基本可以控制水稻虫害。
问题补充： |
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2013-05-23 12:21:38
A frog can eliminate ten thousand a year pest, put frog 7500 per hectare more than the basic rice pests can be controlled.
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2013-05-23 12:23:18
A frog can eliminate 10,000 head per year per hectare pest, and more than 7500 inject frogs, basic can control rice pests.
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2013-05-23 12:24:58
A frog can eliminate 10,000 harmful insects every year, above each hectare delivery frog 7500, basic may control the paddy rice insect pest.
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2013-05-23 12:26:38
Each of a frog to 10,000 head of pest eradication, Rana put more than 7,500 head per hectare, basic to control rice insect pests.
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2013-05-23 12:28:18
A frog can eliminate 10,000 pests, more than 7500 of frog for per hectare of input every year, can basically control the insect pest of the rice.
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