made of aluminium oxide
由氧化铝制成
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The material is made of aluminium oxide and polystyrene powder.
该材料由氧化铝和聚苯乙烯粉末混合形成。
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Thermite is a substance that can literally melt steel and is made up of iron oxide and aluminium.
BBC: Q&A: The collapse of Tower 7
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