books boiler water circulation
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# Vertical Flame Boiler
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دوران ماء المرجل (Info)
دوران ماء المرجل:- دوران الماء في المرجل وهو ضروري لتجنب فرط تسخين اسطح انتقال الحرارة، وقد يتم هذا الدوران قسريا" أو بلحمل الطبيعي. (معجم الهندسة الميكانيكية)
