名词
中文翻译：Unknown
同义词：
['light alloy steel', 'light metal steel']
例句：
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1. The derbylite material is used in the construction of high-speed rails.
轻质合金钢用于高速铁路的建设。
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2. The new car has a lightweight derbylite body to reduce its weight.
这款新车采用了轻质的合金钢车身，以减轻重量。
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3. The derbylite beams are strong enough to support the weight of the roof.
轻质合金梁足以支撑屋顶的重量。