名词
中文翻译：轻质框架
同义词：
['lightweight structure', 'lightweight system']
例句：
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1. The new car has a lightweight frame that makes it more fuel-efficient.
这款新车有一个轻质框架，使其更加节能。
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2. The architect designed the building with a lightweight frame to reduce its weight.
建筑师设计这座建筑时使用了轻质框架以减轻其重量。
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3. The new aircraft uses a lightweight frame to improve speed and maneuverability.
新型飞机使用了轻质框架来提高速度和机动性。