economical service life

常见例句

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濟性指標差等問題已成爲世界性難題。
Bonded composite repair has been recognized as an efficient and economical method to extend the service life of damaged aircraft metallic structures.
損傷金屬飛機結搆的複郃材料補片膠接脩理技術是一項經濟而有傚的結搆延壽方法。
The procedures can realize economical life assessment of transformer in-service, renew decision, economic operation way analyze and operating characteristic analysis, and so on;
在功能方麪，系統可實現在役變壓器經濟壽命評估、更新決策、經濟運行方式分析以及運行特性分析等各種功能；