short wave or long wave 中文意思是什麼
short wave or long wave
解釋
短波或長波-
At present, the main means for time transfer are long or short wave, telephone, gps, double star etc
目前,國內外時間傳遞方式主要有長波授時、短波授時、電話授時、雙星比對、 gps時間信息。 -
As a important method for middle or long distance wireless communication, short - wave communication gains its recognition over again, for its long - distance and anti - destroy capability. but now more advance performances are expected
短波通信是中遠距離無線通信的一個重要方式,由於通信距離遠、抗打擊能力強、設備簡單等優點在近年來重新受到重視。 -
Abstract : at present, the main means for time transfer are long or short wave, telephone, gps, double star etc
文摘:目前,國內外時間傳遞方式主要有長波授時、短波授時、電話授時、雙星比對、 gps時間信息。
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