名词
中文翻译：四频对分通信
同义词：
['four-channel', 'four-frequency', 'frequency division multiplexing (FDM)', 'frequency division multiplexing (FDMA)', 'frequency division multiplexing (CDMA)', 'frequency division multiplexing (OFDM)']
例句：
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1. The new satellite system supports four-frequency diplex communication.
新的卫星系统支持四频对分通信。
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2. In the 4G network, data is transmitted over four different frequencies simultaneously.
在4G网络中，数据以四个不同的频率同时传输。
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3. This technology allows for efficient use of bandwidth by allowing multiple devices to share a single frequencychannel.
这项技术允许多个设备共享一个频率信道，从而高效使用带宽。