電でん波ぱ天てん文もん台だいでんぱてんもんだいMeanings1nounradio astronomy observatoryA facility equipped with radio telescopes for observing celestial radio waves.野の辺べ山やまの電でん波ぱ天てん文もん台だいは、日本にほんで有ゆう名めいな観かん測そく施