books mercury delay line
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خط تأخير زئبقي (Info)
خط تأخير زئبقي:- خط تأخير باستخدام تقبض الزئبق، لإعادة دورة الإشارات الصوتية، ومن ثم حفظها من التلاشي. (معجم الحاسبات)
