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قسم الهندسة الصحية » الموسوعه الهندسية


Category Archive: قسم الهندسة الصحية

كل ماتحتاجه فى الهندسة الصحية

يونيو 27 2015

مراحل معالجة مياه الشرب

تشغل المياه حوالي ثلاثة أرباع سطح الكرة الأرضية وتعتبر اقل من1%فقط من هذه الكمية صالحة للشرب , وتحتاج إلى معالجة دقيقة قبل عدد الزوار :0

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