Commercial divers must meet the requirements of CSA Standard Z275.4-02, Competency Standard for Diving Operations.
商业潜水员必须符合CSA标准Z275.4 - 02，潜水作业能力标准的要求。
Commercial divers must meet the requirements of CSA Standard Z275.4-02, Competency Standard for Diving Operations.
商业潜水员必须符合CSA标准Z275.4 - 02，潜水作业能力标准的要求。
应用推荐