“holding time”的概念、定义、翻译、参考文献-科学参考

单词	holding time
释义	holding time [`hōl·diŋ ´tīm] ^{COMMUNICATIONS} Period of time a trunk or circuit is in use on a call, including operator's time in connecting and subscriber's or user's conversation time.
随便看	rocket fuel rocket igniter rocket launcher rocket lightning rocket missile rocket motor rocket nose section rocket ogive rocket propellant rocket propulsion rocket ramjet rocketry rocket sled rocket-sled testing rocketsonde rocket staging rocket station rocket thrust rocket tube rockeye rock fabric rock failure rockfall rock fan rock-fill

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