名词中文翻译
中文翻译：无污染引擎
同义词：
['clean engine', 'eco-friendly engine']
例句：
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1.The new pollution-free engine significantly reduces emissions.
这款新型无污染引擎显著减少了排放。
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2.The company has invested in developing a pollution-free engine to meet environmental standards.
该公司投资开发了一款无污染引擎，以满足环保标准。
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3. The pollution-free engine is the future of transportation, and it's already being tested on public roads.
无污染引擎是未来交通的发展方向，已经在公共道路上进行测试。