semaphore臂: arm状: form; shape信号机: annunciator; semaphore; tele ...条状信号: bar signal; flagpole signal; flagpoles信号机: annunciator; semaphore; teleseme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:臂状信号机，即可在微信中查询翻译
