调制副载波(衰减测试)技术 modulated: 改变了的; 受调; 巳的; 已调制的amplitude modulated: 调幅的amplitude-modulated: 调幅的; 振幅调制的code-modulated: 编码调制的frequency modulated: 频率调制的下载手机词典可随时随地查词查翻译