您要查找的是不是：
- The band was miming to a backing tape. 乐队在录音带的掩护下模拟演奏。
- A part of an audio system for recording and playing back tapes. 磁带播放机。
- We have developed stable sources of supply for non-ferrous and ferrous ores, concentrates and refined metals backed up by long term contracts with major metal suppliers and mining companies. 在货源方面，我们的有色和黑色金属矿、精矿和精炼金属有稳定的来源，托克上海与国内主要金属供应商和矿业公司都签订了长期协议。
- She knows why the metal is the good conductor. 她知道金属为什么是好的导体。
- Can I fasten these metal plates with rivets? 我可以用铆钉把这些金属板固定在一起吗？
- You need a strong adhesive to bond wood to metal. 需要强力胶才能把木料粘在金属上。
- The car was now just a pile of twisted metal. 那辆汽车已经成了一堆压缩的废铁了。
- The metal basin clattered down the stone stairs. 金属盆子沿着石阶滚了下去，发出咣啷声。
- SOCOG officials had ordered pre-recorded backing tapes for the entire ceremony to ensure nothing could go wrong on Sydney's big night. 悉尼奥组委的官员曾经指示对整个开幕式事先录好备份带，以确保在悉尼的盛大夜晚万无一失。
- Aluminum is a kind of light silvery metal. 铝是一种轻薄并呈银色的金属。
- The aeroplane wing showed signs of metal fatigue. 机翼显出有金属疲劳的现象。
- Molten metal is poured back into the moulds. 已熔的金属被倒回注入到铸模里。
- The metal frame tends to twist under pressure. 这种金属框受压後容易变形。
- The ship was broken up for scrap metal. 这艘船拆毁了当废铁用。
- Being heated, the metal is rapidly melting. 由于受热，金属在迅速熔化。
- The metal has corroded (away) because of rust. 该金属已锈蚀。
- You need a powerful saw to cut through metal. 切割金属需用强劲的锯。
- The hot metal contracts as it cools (down). 热的金属一冷(下来)就收缩。
- One of several metal strips forming a leaf spring. 簧片构成片簧的几个金属片中的一个
- The metal is fretted with the acid. 金属被酸腐蚀。
