Analysis on status of third party notarization inspection and necessity of occupational standard in coal business in China刘翊4-5
Study on coal quality and coking characteristics of coking coal imported from Australia王文光, 付裕, 孙海英, 王殿苏, 杜平, 王刚13-15
Discussion on the correct writing and application of the symbol of coal analysis items米娟层, 魏宁23-24,27