كتاب تجهيزالنظارات الطبية للكاتب اسيل حمادة

تجهيزالنظارات

Glass has two properties that make it especially suitable for optical uses. It is transparent to the visible spectrum, and its surface may be worked so that they are also transparent and nonscattering
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الكتاب تأليف: اسيل حمادة و نسرين العقاد)