Implemented by user, no special support needed from operating system, programming design of overlay structure is complex.
由用户执行，不需要操作系统的特别支持，覆盖结构的程序设计很复杂。
The design, paving and effect analysis of testing road section provide basis for the design of thin asphalt overlay structure of old cement concrete pavement.
通过试验路段的设计、铺筑和效果分析，为旧水泥混凝土路面加铺薄沥青面层结构设计提供依据。
Reflective cracking overlay structure is the focus of design considerations.
反射裂缝是加铺层结构设计考虑的重点。
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