船用声光报警信号器通用技术条件的英文

marine acoustic and optical alarm signaller general specification

• 船:    boat; ship; vessel ...
• 用:    40分钟跑完全程 run the c ...
• 声光:    acousto-optic
• 报警信号:    alerting signal
• 器:    implement; utensil ...
• 通用:    be in common use; ...
• 技术条件:    technical conditio ...