“类金属”造句

本节只讨论其中的两类: 金属离子钝化剂和过氧化物分解剂.
Only two types will be included in present discussion: metal - ion deactivators and peroxide decomposers.

为方便起见,材料分为三大类: 金属, 塑料或聚合物和陶瓷.
It is convenient to divide materials into three main types: metals, plastics or polymers and ceramics.

他们认为,这类金属不会面临比铁矿石等普通大宗原料更为严重的短缺.
They do not foresee worse shortages than for more common commodities such as ore.

• #类金属