العرباوي_10 Posted نوفمبر 8, 2005 Report Posted نوفمبر 8, 2005 بغيت مكونات الهواء الجوي مثل الاكسجين والخ........ واريد نسها مثلا : الاكسجين جم نسبتها ب% والنيتروجين والهيدروجين
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