平均失效时间
mean time to failure
缩写：MTTF
中文定义
组件或系统从运行开始到失效的平均时间。 缩写： 缩写：
English Definition
The average time from the start of operation to a failure for a component or system.
mean time to failure
缩写：MTTF
组件或系统从运行开始到失效的平均时间。 缩写： 缩写：
The average time from the start of operation to a failure for a component or system.