可延长机车车辆、钢轨及联接零件的使用寿命_哈尔滨铁路局 关键词：无缝线路；养护维修；胀轨跑道 [gap=433]KeyWords:CWR;Maintenance;railtrackexpansion
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In today’s increasingly stringent environmental requirements,a large number of roads need maintenance and repair.
在对环境要求日益严格的今天,大量的道路需要养护维修。
参考来源 - 沥青混凝土路面就地热再生的优势·2,447,543篇论文数据，部分数据来源于NoteExpress
在对环境要求日益严格的今天，大量的道路需要养护维修。
In today's increasingly stringent environmental requirements, a large number of roads need maintenance and repair.
探讨了网级路面养护维修管理系统设计过程中的标准化和灵活性问题。
The tradeoff between standardization and flexibility in system design for pavement maintenance and rehabilitation (M&R) management at network level is discussed.
既有桥梁的养护维修、鉴定评估和加固改造也已经成为工程界的热点问题。
Servicing, assessment and reconstruction for existing bridges have become the focus in engineering field.
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