main-belt comet主: host彗星: comet主彗尾: main tail彗星: [天文学] comet◇彗星群 comet group; 彗星天文(学) cometary astronomy; 彗星物理(学) cometary physics; 彗星云 comet cloud; 彗星照相仪 cometograph; 彗星族 family of comets大彗星: great comet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:主彗星，即可在微信中查询翻译
