| 释义 |
有效期yǒuxiàoqī
1.条约、合同等有效的期限。{(of treaty, contract, etc.) term or period of validity}
2.化学物品、医药用品以及某些特殊器材在规定的使用与保管的条件下,其性能不变而有效的期限。一般由原生产单位规定,有时由使用部门自行规定。{time of efficacy; period of time in which the properties or performances of chemicals, drugs and certain special equipment remain unchanged under prescribed conditions for their use and keeping. Usually, the time of efficacy is prescribed by the producer and occasionally by the user.} |