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حمل و نقل در قسمت های مختلف معدن – کانی کار
Webحمل و نقل در قسمت های مختلف معدن. فرمت پاورپوینت در 12 اسلاید دانلود فایل. روش باربری در تونل های مورب تا حد زیادی بستگی به نحوه باربری درتونل ی افقی مرتبط با آن دارد .دربیشتر تونل های مورب از واگن و جرثقیل برای باربری ...
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