telegraph signal pattern电报: telegram; cable; telegraph; ...信号: signal; semaphore; gun模式: model; mode; pattern; type; ...双信号模式: dual signal model电报信号: telegraph signal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:电报信号模式,即可在微信中查询翻译