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远距离爆破技术条件
The technical specification of the remotely initiated blasting in danger face of coal(rock) and gas outburst
参考页数:5P.;A4
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煤和岩石点荷载强度测定方法
参考页数:5P.;A4
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硬煤矿开采的原矿材的勘测.坚岩石的拉伸强度的测定
Investigations of the raw material in hard-coal-mining; determination of tensile strength on solid rock
参考页数:2P.;A4
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煤岩术语
Terms relating to coal petrology
价格:¥0.00
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煤的镜质体反射率显微镜测定方法
Method of determining microscopically the reflectance of vitrinite in coal
价格:¥0.00
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煤的显微组分组和矿物测定方法
Determination of maceral group composition and minerals in coal
价格:¥0.00
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煤体结构分类
Classification of coal-body structure
价格:¥0.00
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显微煤岩类型分类
Classification of microlithotype
价格:¥0.00
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