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有广义和狭义之分。广义播音即泛指广播电台、电视台所有节目播出的统称。狭义播音指广播电台、电视台由播音员、节目主持人、编辑、记者以有声语言进行传播的活动,或广播电台、电视台由专职播音员直接面向听众、观众所作的语言传播。
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broadcasting
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precise ephemeris service
precise feeding
precise interrupt
precise levelling
precise location-based services
precisely unless
precise mechanism installation measurement
precise orbit determination
precise orbit determination of navigation satellites
precise point positioning
precise positioning service
precise ranging code
precise regulation and control
precise statement
precise time and time interval
precise traversing
precise trigonometric leveling
Precision
precision
precision agriculture
precision airdrop system
precision alloys
precision analog photon address
precision analysis method of exploratory profile
precision and recall curve
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