scarce metal
英
美
- metal n.金属；合金；玻璃液vt.(以金属)覆盖、装配
- scarce adj.缺乏的；不足的；稀少的；罕见的adv.勉强
- Rare metal is indispensable for the aircraft industry.
稀有金属是航空工业发展不可或缺的原材料。
- These coins were round lumps of precious metal with their weight stamped on them.
这些硬币是由稀有金属制成的圆形块状物，上面印有其重量。
