设备役龄
- 网络serviceage of facilities
设备役龄-
随着CNG汽车加气站网络的逐步形成，加气站设备役龄的增加，加气站安全形势日趋严峻。
Along with the gradual formation of CNG filling station network , and the increasing working life of the equipments under operation , the security of CNG filling stations has been under increasingly serious situation .
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第3章从技术与经济角度定性分析了各种因素对港机拥有量的影响，其中主要包括机械起运量、完好率与利用率、机械设备役龄、购置与营运成本等；
In chapter 3 , I qualitatively discusses characters influencing machinery quantity , which include lifting ton , intact rate and using rate , age of machinery , machinery purchase and working cost and so on .
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石油施工企业设备最佳役龄匹配标准的研究
Study on Match Standard of Optimum Service Years of Equipment in Oil Contruction Enterprise