الكواكب و العتاد ، الانتقال ، قيادة ، أداء ، ترقية وظيفية ، تقنية ، علم الميكانيكا ، آلة ، معدن ، قريب
Public Domain
علامات الصورة:
الصور ذات الصلة الخالية من حقوق الملكية
- Public Domain
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