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词汇
Quadrature Amplitude Modulation
释义
Quadrature Amplitude Modulation
正交振幅调变(=QAM)
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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statement number
statement of account
statement of general average
statement of necessity
statement of the balance of international payments
statement of the balance of payments
statement verb
state monopoly
state of affairs
state of emergency
state of mind
state of play
state of the art
state-of-the-art
state-of-the-art technology
state park
stater
stateroom
state-run
State Run General Petroleum and Mineral Organization
State's attorney
state school
state's evidence
States-General
Stateside
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更新时间:2026/9/29 4:26:29