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روش استخراج معدن زغال سنگ، به زمین شناسی منطقه آن بستگی دارد. معادن زیر زمینی حدود ۶۰ درصد از تولید زغال سنگ در جهان را تشکیل میدهند. در استخراج سطحی، استرالیا ۸۰% تولید سطحی و ایالات متحده آمریکا ۶۷% را شامل میشود. در کشورهای مهم تولید کننده زعال سنگ معادن سطحی رایجتر هستند. استخراج زغال سنگ زغال سنگرا میتوان از طریق معادن سطحی یا زیرزمینی انج... See more
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