液態氧 液態氧
，​yangqiyiyetaixingshibeiguangfanyongzuohehuojiandeyanghuaji
，zaiyangqizhongtayuyetaiqingfashengfanyingyichanshengqifeisuoxudejudatuili。yuhangyuandeyuhangfubaokuojihuchunjingdeyangqi。