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The communication performance is poor under bad channel condition.
在信道条件较差时，通信性能较差。
youdao
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The communication performance is poor when the channel condition is bad.
在信道条件较差的时候，通信性能较差。
youdao
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The communication performance is poor when the channel condition is bad.
在信道条件较差的时候，通信性能较差。
youdao