... 一次量杀鼠剂：single-dose rodenticide 一次变频接收机：single conversion receiver 一次变频超外差接收机：single conversion superheterodyne ...
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Based on a direct-conversion architecture, the receiver integrates LNA, I/Q mixer, DC-offset removal filter, baseband amplifier and channel-select filters on a single chip.
基于直接下变频的系统架构，接收机集成了低噪声放大器、I/Q下变频器、去直流偏移滤波器、基带放大器和信道选择滤波器。
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