词语有效寿命
解释useful working life
useful working life〔名词〕有效工作寿命详细»
有效寿命actual life;effective life;effective lifetime;service life详细»
有效寿命active life time;service life详细»
有效寿命active life time;effective life;useful life详细»
有效寿命actual life;effective lifetime;service life详细»
有效寿命actual life详细»
有效寿命actual life;effective life详细»