短语词组短語auroral emission 極光發射auroral belt [地物]極光帶auroral substorm [地物]極光亞暴;極光次暴auroral spectra 極光光譜;極光譜auroral footprints 極光足印auroral streamer 極光幕;極光流auroral zones 極光帶;極光地帶auroral ray 極光射線auroral temperature [地物]極光溫度 返回 auroral