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1. The car was made of steel and aluminum.
这辆车是用钢和铝制成的。
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2. The scientist used a maglev train to travel between cities.
这位科学家使用磁悬浮列车在城市间旅行。
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3. Magnets are used in many applications, including in the manufacturing of magnetic recording media.
磁铁在许多应用中都有使用，包括制造磁性记录介质。