1.For enterprises and service providers, the use of network processors ensures against premature product obsolescence.
对于企业和服务供应商而言，采用网络处理器保证不会使未成熟产品被淘汰。
2.Expense also includes depreciation - the loss of value of buildings and equipment due to use (“wear and tear”) or obsolescence (new or improved products make the old product unsellable).
词
灭, 消灭;
和设备使用（磨损）所损失或废弃（新的或改进的产品使老产品销售不出去）的价值
