united nations meeting of experts on space science and technology and its applications within the framework of educational systems يبدو
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- united nations meeting of experts on space science and technology and its applications within the framework of educational systems معنى: اجتماع الأمم المتحدة للخبراء المعني بعلوم وتكنولوجيا الفضاء وتطبيقاتها في إطار النظم التعليمية
