Development of a mechanical roof breaker for ground control in longwall operations under massive roof
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چکیده
منابع مشابه
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ژورنال
عنوان ژورنال: International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts
سال: 1981
ISSN: 0148-9062
DOI: 10.1016/0148-9062(81)90382-x