obsolescence
[,ɔbsəu'lesəns]
n. 退化；荒废
参考例子
1.There's another way to look at obsolescence as well: No technological product is obsolete as long as it continues to perform the job for which you originally purchased it.
从另一个角度来看待这些废弃品：只要它还能继续正常工作就像刚购买时一样，那么任何一种科技产品都不会被淘汰。
2.However, highway tunnel engineering quality inspection and evaluation standard is being dominated by mine tunneling method that obviously exists limitation and obsolescence.
然而在公路隧道质量控制和管理方面仍沿用按矿山法制定的质量检验评定标准，显然存在局限性和陈旧性。
3.Depreciation, the decrease in the capital stock due to wear, tear, and obsolescence, is the flow that subtracts from capital. Capital consumption is another name for depreciation.
折旧是由于磨损和废弃而减少的资本存量，折旧是流量，要从资本中减去。资本消耗是折旧的另一个名称。
英文解释
n.
1.the process of becoming obsolete; falling into disuse or becoming out of date
网络释义
obsolescence
陈旧; 废弃; 过时; 陈旧（建筑），过时（建筑）;
Technical obsolescence
技术陈旧;
planned obsolescence
计划陈旧; 设计之陈废; 计划报废;
obsolescence factor
报废因素;
obsolescence cost
废弃成本; 废弃成;