英语词汇“photographic zenith tube, PZT”的翻译、意思、用法、释义-英汉汉英双解词典

单词	photographic zenith tube, PZT
释义	photographic zenith tube, PZT 照相天顶筒；通过对天顶附近恒星照相；以测定世界时和纬度的仪器。
随便看	the Mesozoic poetry the message The message has registered with the Treasury The message in the newspaper is unabridged theme song Theme-song theme song composition theme songs theme songs of olympic games themes on Yunnan minority nationalities The mesoscale system The message is sent to a Hub Transport server The message is signed by a single signer The message needs emergency dispatch the message object the message of the quantum the message of the quantum? the message of this book the message schema should be extensible the messages of mobile phone the message system The message to be dispatched The message was from Ram The message was propagated by the telegraph the message was transcribed literatim