名词
中文翻译：低密度合金
同义词：
['low-density steel', 'low-density aluminum例句：1. This new car uses a low-density alloy to reduce weight and improve fuel efficiency.（这款新车使用低密度合金来减轻重量并提高燃油效率。）2. The construction of the bridge used a low-density alloy to withstand heavy loads.（建造这座桥梁时使用了低密度合金来承受重载。）']
例句：
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1. This new car uses a low-density alloy to reduce weight and improve fuel efficiency.
这款新车使用低密度合金来减轻重量并提高燃油效率。
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2. The construction of the bridge used a low-density alloy to withstand heavy loads.
建造这座桥梁时使用了低密度合金来承受重载。
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3.The aircraft engine is made from a low-density alloy that provides excellent durability and strength.
飞机发动机由一种低密度合金制成，提供了极佳的耐用性和强度。