auroral arcs极光: aurora; aurora polaris; pola ...弧: arc bow高纬极光弧: auroral arcs in high latitudes均匀极光弧: homogeneous arc射线极光弧: rayed arc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:极光弧,即可在微信中查询翻译