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什么是dB?dBc、dBm、dBi、dBd有什么区别?
在通信、射频和电子工程领域,dB(分贝)及其衍生单位(如dBm、dBc、dBi)是用于描述功率、增益和相对关系的常用单位··· 在通信、射频和电子工程领域,dB(分贝)及其衍生单位(如dBm、dBc、dBi)是用于描述功率、增益和相对关系的常用单位。对于一个 ...
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