- 適任證書適用航區(qū)
- certificate of competency: 船員合格證書; 適任證書; 資格證書
- area a certificate of competency: 類適任證書
- area b certificate of competency: 類適任證書
- certificate of competency as master: 船長合格執(zhí)照
- classes of certificate of competency: 適任證書等級(jí)
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