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radio navigational warnings
释义
radio navigational warnings
Encyclopedia
工学
〔航海安全〕
释
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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safety system function
safety system model
safety system structure
safety technical import from internation
safety technical management
safety technique for using electricity
safety techniques for flight test
safety technology for offshore oil exploitation
safety technology for oil and gas gathering and transportation
safety technology for testing high pressure oil and gas wells
safety technology for testing low pressure oil and gas wells
safety technology innovation
safety technology of flowing well
safety technology of gas station
safety technology of logging and perforating operation
safety technology of logging coring operation
safety technology of melting equipment
safety technology of oil and gas Long distance pipeline
safety technology of oil and gas testing instruments
safety technology of oil production
safety technology of petroleum drilling
safety technology of pumping unit
safety technology of well logging blasting
safety testing
safety test of nuclear weapon
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