صيغ المشتقّات بين الوضع و الاستعمال

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ﺻﻴﻎ ﺍﳌﺸﺘﻘﺎﺕ ﺑﲔ ﺍﻟﻮﺿﻊ ﻭﺍﻻﺳﺘﻌﻤﺎﻝ (https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&cad=rja&uact=8&ved=0CEgQFjAGahUKEwifvY29ze7IAhXCQhQKHb6SAIo&url=http%3A%2F%2Fwww.mohamedrabeea.com%2Fbooks%2Fb ook1_18006.pdf&usg=AFQjCNG0Hyx0RVHseaxyBHgp2VY47VYoQw)