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词汇
QAM
释义
QAM
正交幅度调制(=quadrature amplitude modulation)
一种调制数字信号的编码方式,它兼用振幅编码和相位编码。该方法既可以用於下行,也可以用於上行。该方法能充分利用带宽,并且抗噪声能力强。
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centime
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Central African Customs and Economic Union
Central African States Development Bank
Central American Bank for Economic Integration
Central American Clearing House
Central American Common Market
Central American Common Tariff Nomenclature
Central American Monetary Union
Central American peso
central angle
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更新时间:2025/7/3 5:39:56