swept frequency picture modulation扫: sweep; clear away频: frequent信号: signal; semaphore; gun图像: picture; image; presentation ...调制: mingle; toss; lard; modulate ...下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:扫频信号图像调制，即可在微信中查询翻译
