heterodyne optical receiving set
... 可调光外差接收机 tunable optical heterodyne receiver 外差光接收机 heterodyne optical receiving set 外差式接收机 heterodyne receiver ...
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短语
超外差光接收机
optical superheterodyne receiver
光外差接收机
optical heterodyne receiver
可调光外差接收机
tunable optical heterodyne receiver
超外差激光接收机
laser superheterodyne receiver
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