These characteristics of nonmetal are of great importance .

非金属的这些特性是非常重要的。

It is easy to tell the difference between metal and nonmetal .

说明金属与非金属的区别是不难的。

Nonmetal mineral reserves database of hebei province .

河北省非金属矿产储量数据库。

Most nonmetal chlorides are decomposed by water .

大多数非金属氯化物都可以被水分解。

Nonmetal material gaskets for marine flange .

船用法兰非金属垫片.