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# Encyclopedia of the ocean of knowledge
# Encyclopedia of the ocean of knowledge and science astronomy
# Encyclopedia of the ocean of knowledge and science Volcanoes
# Encyclopedia of the ocean of knowledge and science rivers
# Encyclopedia of the ocean of knowledge, science and engineering
# Encyclopedia of the ocean of knowledge and science the moon
# Encyclopedia of the ocean of knowledge and science islands
# Encyclopedia of ocean knowledge and noise science
# Encyclopedia of the ocean of knowledge and science Water pollution
# Encyclopedia of ocean knowledge and science oceans and seas
# Encyclopedia of the ocean of knowledge, science and mathematics
# Encyclopedia of the ocean of knowledge and science the universe
# Encyclopedia of the ocean of knowledge and chemistry sciences
# Encyclopedia of the ocean of knowledge, science and physics
# Encyclopedia of the ocean of knowledge and sciences climatic regions
# Encyclopedia of oceans - seas and rivers
# Encyclopedia of the ocean of knowledge with a box
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سعة احتياطية (Info)
سعة احتياطية:- سعة معالجة إضافية تنشأ في محطات معالجة النفايات الصلبة ومحطات معالجة مياه المجاري لملاءمة أية زيادة مستقبلية في الحمل نتيجة النمو السكاني (المعجم الموحد لمصطلحات الهندسة المدنية)
