| 例句 |
The value of the machinery is amortized over its estimated useful life.机器的货款在其预计使用年限期间分期支付。The heating system has come to the end of its useful life.供热系统已完成了其使用寿命。North Sea operators kicked against legislation making them responsible for removing oil platforms at the end of their useful life.北海的石油开采商激烈反对要求他们在石油钻井平台使用期结束之后将其移除的立法。Some plastics are designed to biodegrade when their useful life is over.有些塑料被设计为过了有效使用期就可以生物降解。 |