使用寿命: operation life; working life ...计算: count; compute; calculate; r ...寿命计算公式: life formula长使用寿命: long life; longevity of service; long service life可使用寿命: serviceable life使用寿命: application life; calendar life; in service life; in-service life; length of life; life cycle; life length; life time=lifetime; life-span; longevity; operating life; operation life; operational life proof cycle; operational life span; operational lifetime; service lifetime; service limit; serviceable life; useful life; useful physical life; useful time; using life; working life使用寿命期: useful life period使用寿命值: standzahl tool life index figure使用寿命, 使用期: service lifetime产品使用寿命: life-cycle车辆使用寿命: vehicle service life刀具使用寿命: cutter life服役使用寿命: in-service life钢绳使用寿命: rope life高温使用寿命: high temperature life工具使用寿命: tool life估计使用寿命: endurance expectation极限使用寿命: age limit; ultimate life经济使用寿命: economic service life理论使用寿命: theoretical service life炉的使用寿命: life of furnace毛毯使用寿命: felt life平均使用寿命: aul average useful life; average life; mean life设计使用寿命: design service life实际使用寿命: actual service life; practical life
