... 经济使用期限 economical service life 生命周期使用期限 lifecyclecomputer 油使用期限 lifespanofoil ...
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economical residual service life 经济剩余使用寿命
Poor durability, short service life and low economical efficiency of Bridges have become a worldwide difficult problem.
桥梁耐久性差、服务寿命短及全寿命经济性指标差等问题已成为世界性难题。
Bonded composite repair has been recognized as an efficient and economical method to extend the service life of damaged aircraft metallic structures.
损伤金属飞机结构的复合材料补片胶接修理技术是一项经济而有效的结构延寿方法。
The calculation equation of the economic insulating layer thickness in different service life was (derived) through the life cycle economical analysis of the mini-cold storage.
通过有限生命周期内微型冷库经济性能的分析，推导了微型冷库在使用年限不同时的经济保温层厚度计算公式。
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