常見例句雙語例句Poor durability, short service life and low economical efficiency of bridges have become a worldwide difficult problem.橋梁耐久性差、服務壽命短及全壽命經(jīng)濟性指標差等問題已成為世界性難題。Bonded composite repair has been recognized as an efficient and economical method to extend the service life of damaged aircraft metallic structures.損傷金屬飛機結(jié)構(gòu)的復合材料補片膠接修理技術是一項經(jīng)濟而有效的結(jié)構(gòu)延壽方法。The procedures can realize economical life assessment of transformer in-service, renew decision, economic operation way analyze and operating characteristic analysis, and so on;在功能方面，系統(tǒng)可實現(xiàn)在役變壓器經(jīng)濟壽命評估、更新決策、經(jīng)濟運行方式分析以及運行特性分析等各種功能； 返回 economical service life