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نتایج به دست آمده از اندازه گیری جرم و اندازه قطعات نمونه های خردشده در نمونه های مطالعه شده در این پژوهش نشان دادند که خردشدگی قطعات زغال سنگ بر اثر رهاسازی در محیط آزمایشگاهی از ارتفاع ثابت 4 متری در 3 مرحله متفاوت از نظمی ثابت تبعیت می کند.نتایج: بدین ترتیب که هرچه مراحل خردشدگی افزایش یابد, میزان خردشدگی در یک تابع زمانی در ناحیه کوچک تر …
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درعلم مقاومت مصالح جسم مورد اندازه گیری ، تحت شرایط و عوامل متغیر خارجی ولی با خاصیت فیزیکی و مکانیکی مشخص ، بررسی می شود تا مجهولات آن براساس فرمول فیزیکی و تغییرات مکانیکی تعیین گردد.اما در فرآیند خرد کردن ، فاکتور های موثر آن چه از لحاظ ساختمان مواد خرد شونده و چه از لحاظ نوع و چگونگی تاثیر گذاری نیروهای خرد کننده و شرایط تاثیر آنها در آسیاها …
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