failuren.失败；失败者；不及格；疏忽；失灵；未能；悲惨的事failure of rib煤壁破坏failure-rate失效率failure affect失败情感failure energy破坏能量failure season[计] 故障季节failure sorted故障分级failure points故障点failure report[计] 故障报告failure number失效次数failure system失效系统