deviascope自差: autodyne; autoheterodyne; en ...观测仪: visualizer较差观测: differential observation观测仪: observer; sighting instrument; visualizer摆幅观测仪: ampliscope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:自差观测仪，即可在微信中查询翻译
