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无线电航海警告
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无线电航海警告
Encyclopedia
工学
〔航海安全〕
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radio navigational warnings
无线电航海警告
利用无线方式播发的与航行安全有关的紧急信息。多数属临时性质,有些警告的有效期可达数周,直至最后为航海通告所代替。又称无线电航行警告。
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education curation
education custom
education during the period of Late Qing reforms
education festival
education financed by religious assets
Education-first Model of China's Social Work Development
education for all
Education for All Handicapped Children Act of 1975
education for children with physical disabilities
education for illiteracy
education for international understanding
education for national minorities
education for sustainable development
education for the disabled
education governance
education group
education historical relic
education in ancient Athens
education in ancient Egypt
education in ancient Greece
education in ancient India
education in ancient Persia
education in ancient Rome
education in ancient Sparta
education in Argentina
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