“炉渣”造句

这种材料有不同的名称,如灰 、 炉渣 、 煤渣或矿渣.
This material is variously termed ash, clinker, cinders or slag.

有时炉渣能有用处.
In some cases the slag can be disposed of usefully.

每年有数百万吨炉渣用于铺路.
Millions of tons of slag now go into building roads each year.

• #炉渣