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خط تساوي الميل (Info)
خط تساوي الميل:- (المغناطيسي) (المعجم الموحد لمصطلحات الزلازل)
![A Text-book Of Geometrical Deductions: Book I [-ii] Corresponding To Euclid ...](/publice/covers_cache_jpg/21/a/6/3/463627ff97a63d07fa3d0fee1b9f0677.jpg.jpg "A Text-book Of Geometrical Deductions: Book I [-ii] Corresponding To Euclid ...")
