1.after sending investigators to the scene we can now confirm that it was the result of an accidental fire.
在派出调查人员到现场后，我们现在可以确定事故是由于意外失火导致的。
2.Weld the spark may cause accidental fire, please confirm the welder a neighborhood to have no combustible.
焊接火花可能会导致失火，请确认焊接工位附近无易燃物。
3.An accidental fire remains isolated for a sufficient period to permit the occupants to escape.
意外发生的火灾可继续地被隔离一段足够长的时间，使得居民能够逃脱。
4.Three people were killed in an accidental fire.
三人死于意外的火灾。