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صمامات تصريف الهواء (Info)
صمامات تصريف الهواء:- صمامات تركب في المواقع العالية من الخطوط الرئيسية للري بالرش وذلك لمنع تجمع الهواء في الأنابيب عند هذه المواقع. (معجم الهيدرولوجيا)
