失效密度 meaning in English

failure density
failure-density

Failure intensity acceleration factor
失效密度加速系数
Constant failure intensity period
恒定失效密度期
Instantaneous failure intensity
瞬时失效密度
Mean failure intensity
平均失效密度
Equipment reliability testing - tests for the validity of the constant failure rate or constant failure intensity assumptions
设备可靠性试验.恒定失效率或恒定失效密度设想的有效性试验