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short wave radio time service
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short wave radio time service
Encyclopedia
工学
授时
释
short wave radio time service
短波授时
将标准时间信号调制在波长为3~30兆赫兹无线电信号上,并通过发播台站发播给时间用户使用的方法、技术和过程。
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optical coherence tomography
optical coherence tomography, OCT
optical coherent communication system
optical coherent transient effect
optical collimator
optical communication
optical compensation
optical compensation type length measuring machine
optical compensation zoom lens
optical component
optical component tester
optical computer
optical computing
optical conductivity
optical conjugation
optical connector
optical constant
optical constants of solids
optical contact
optical cooling
optical correlation
optical counterpart
optical coupler
optical coupling
optical cross-connection
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