books secondary low
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Source: wikipedia.org
منخفض ثانوي (Info)
منخفض ثانوي عبارة عن منطقة ذات ضغط جوي منخفض محدودة المساحة والعمق تدخل ضمن التوزيعات العامة لمنخفض جوي رئيسي، ويكون المنخفض الجوي الثانوي داخلاً في البداية في دوران المنخفض الأصلي الرئيسي، ليتطور أخيراً هو نفسه إلى منخفض رئيسي.
