بكتيريا ، جراثيم ، الميكروبات ، طبي ، مجهري ، علم ، مادة الاحياء ، عدوى ، النقط ، كائن حي ، نبذة مختصرة
Public Domain
علامات الصورة:
الصور ذات الصلة الخالية من حقوق الملكية
- Public Domain
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