久青草国产手机视频免费观看_毛片网站是多少_亚洲视频中文_一区二区高清在线

首頁英語詞典pulsarpulsar英英釋意

pulsar

英 ['p?lsɑ?] 美['p?lsɑr]
  • n. 脈沖星

英英釋意

1. a degenerate neutron star; small and extremely dense; rotates very fast and emits regular pulses of polarized radiation