常見例句雙語例句The FCC (Federal Communications Commission) sets spectral masks or adjacent-channel-power-ratio requirements on some services, such as land mobile radio.FCC（美國聯(lián)邦通信委員會）規(guī)定一些設(shè)備上，如地面移動無線電，頻譜遮罩或鄰近信道功率比的需求。 返回 adjacent-channel power