适航证书 Certificate of seaworthiness ; seaworthy certificate ; Seaworthiness Certificate ; Certificdined on of seaworthiness
航行证书航运执照 navigation certificate
试航证书 Certificate for Trial Voyage
适航证明书 Airworthiness Certificate ; certificate of airworthiness
船舶适航证书 Seaworthiness Certificate ; certificate of seaworthiness
船舶适航证书适航证书 Seaworthiness Certificate
临时适航证书 interim seaworthiness certificate
无限航区证书 Certificate of Non-restricted Waters
有限航区证书 Certificate of Restricted Waters
企鹅英语导航丛书 Really Useful English Idioms ; Business English Verbs ; Really Useful English Words
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