failuren.失败；失败者；不及格；疏忽；失灵；未能；悲惨的事failure aspect失误层面failure causes故障原因failure stress破坏应力,裂断应力failure button故障按钮failure models破坏模式failure-free[计] 无故障的failure of law法律失败failure height极限高度failure strain破坏应变failure process破坏过程