四川省南江县东榆镇耳子山建筑用石料矿床地质特征及开采技术条件研究
사천성남강현동유진이자산건축용석료광상지질특정급개채기술조건연구
The Study on the Geological Characteristics and the Mining Technical Conditions of the Building Stone Mine, Dongyu Handle Mountain Town Nanjiang County, Sichuan Province
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