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06/02/2021· مواد مصنوعی صابون های لایه بردار همان اثر سنگ پا و ماسه را دارند، با این تفاوت که از لبه های تیز و سوزش آور خبری نیست. جنس این ریزدانه ها پلاستیک یا پلی اتیلن است. این لایه بردارها طوری طراحی شده اند که روی پوست های حساس به نرمی عمل کنند. همچنین تعداد سلول هایی که با این مواد جدا می شوند کمتر است، زیرا زبری آنها کمتر است.
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در همان لحظه که دسته ی آسیاب می چرخد مقداری گندم در روزنه ی وسطی ریخته می شود تا با سرازیر شدن گندم درمیان دو سنگ آرد بدست آید که از اطراف دو سنگ بیرون می ریزد. در زیر آسیاب سنگی نیز پارچه ای تمیز یا سفره ای سفید پهن میشود تا آرد بدست آمده از گندم روی آن ریخته شود. در نهایت خوشه های زبر گندم به پودری سفید و نرم تبدیل می شوند.
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