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关注：1
2013-05-23 12:21
求翻译：二是改进技术手段，如改进发动机结构，降低尾气污染；是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
二是改进技术手段，如改进发动机结构，降低尾气污染；
问题补充： |
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2013-05-23 12:21:38
The second is to improve the technical means, such as improving the structure of the engine, reducing exhaust pollution;
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2013-05-23 12:23:18
2 is to improve technical means, such as the improved engine structure and lower exhaust pollution.
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2013-05-23 12:24:58
Two, improvement technology method, if the improvement engine structure, reduces the exhaust pollution;
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2013-05-23 12:26:38
II is an improved technological means, such as improved engine structure, reducing exhaust pollution;
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2013-05-23 12:28:18
Increases day by day along with the private vehicle, not only the traffic accident frequency sends, the environmental pollution more and more is also serious.
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