occupational safety and health convention, 1981 يبدو
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كلمة بكلمة
- occupational يبدو
- safety يبدو
- and يبدو
- health يبدو
- convention, يبدو
- 1981 يبدو
- occupational safety and health convention, 1981 معنى: اتفاقية الصحة والسلامة المهنية 1981
