名词
中文翻译：同心圆构造的化油器
同义词：
['concentrically designed carburetor', 'concentrically constructed carburetor']
例句：
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1. The car's engine was so loud that it could be heard from a mile away.
这辆车的引擎声音很大，可以传得很远。
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2. The engineer carefully inspected the carburetor to ensure its proper functioning.
工程师仔细检查化油器，确保其正常工作。
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3. The new design of the carburetor has greatly improved fuel efficiency.
新型化油器的推出大大提高了燃油效率。