煤矸石利用 meaning in English
utilization of gangue
Examples
- As a waste , the harml . of waste rock had been paid , great attention . on the conduct of the government policy , scientists in some departments had done lots of researches and they had found methods to use waste rock
煤矸石作为一种固体废弃物，其危害性已引起了广泛重视，在国家政策引导下，我国各科研，生产部门作了大量的研究，取得了很大进展，开发了十多项煤矸石利用途径。