
Recreational diving services - Requirements for the training of scuba instructors Part 1: Level 1 (ISO 24802-1:2014)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Recreational diving services - Requirements for the training of scuba instructors Part 1: Level 1 (ISO 24802-1:2014)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻