rare metals的用法和樣例：
例句
- Some rare metals have radioactivity.
某些稀有金屬具有放射性。 - Rare metal is indispensable for the aircraft industry.
稀有金屬是航空工業發展不可或缺的原材料。
rare metals的相關資料：
臨近單詞
rare old
rare
rare damage from chilling temperature
rare and clump vegetation distribution
Rare protection evergreen woody plants
rare earth permanent magnetic material
RAREFIED GAS FLOWS IN MICRO-CHANNELS
Rare-earth permanent magnet material
rare earth magnetic nano-microspheres
Rare earth permanent magnetis materials
Rare American Chestnut Trees Discovered
rare earth magnetic substance multilayer
