telegraph coupling unit电报: telegram; cable; telegraph; ...耦合器: coupler耦合器: coupler; coupling mechanism; coupling unit; electric coupling; jiggert型耦合器: tee couplerx形耦合器: x coupler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:电报耦合器,即可在微信中查询翻译