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amateur radio communication activities
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amateur radio communication activities
Encyclopedia
教育学
无线电运动
释
amateur radio communication activities
业余电台通讯活动
利用业余电台进行通讯联络以研究无线电技术的一种活动。
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Aleksei Ivanovich Kandinsky
Aleksei Nikolayevich Arbuzov
Aleksei Vladimirovich Batalov
Aleksey Arkhipovich Leonov
Aleksey Balabanov
Aleksey Feofilaktovich Pisemsky
Aleksey Konstantinovich Tolstoy
Aleksey Nikolayevich Leontyev
Aleksey Nikolayevich Tolstoy
Aleksey Pavlovich Chapygin
Aleksey Petrovich Antropov
Aleksey Silych Novikov-Priboi
Aleksey Stepanovich Khomyakov
Aleksey Vasilievich Koltsov
Aleksin Anatoly Georgievich
Aleksis Kivi
Alembert
A. Lempel
A. Lempel (1936—)
Alemtuzumab
alemtuzumab
aleph
aleph 1 Martin's axiom
aleph1马丁公理
aleph-nought
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