...库管理系统；高等级公路；管理系统 [gap=1317]Keyword ：Lu off files ;ADO; database management system; High-grade highways; Management System ...
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high-grade highways in china 我国高等级公路
Pavement evenness is important for evaluation of high-grade highways.
路面平整度是评价高等级公路的一项重要指标。
The paper introduces visual analysis and reactive characteristics and application of visual induction in the design of high-grade highways.
文章介绍了视觉分析与反应特性，以及视觉诱导在高等级公路设计中的应用。
Until recently, a number of high-grade highways have taken place in the more serious problem of water damage and damage to the importance of water issues.
直至最近，一些高档级公路产生了较为严重的水侵害问题，也到了器重水侵害问题的时候了。
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