1.【建】副基层,下基层
1.a deep layer of large stones that forms the lowest level of a roadbed or of the foundation of a building
2.the lowest section of any base or foundation, e.g. the bottom part of a pedestal
1.Regeneration aggregate can substitute natural aggregate and be used for highway base and subbase aggregate.
得出再生集料可以替代天然集料用于高等级公路基层和底基层的结论。
2.Other site issues to correct included a front porch with the same subbase problem as the drive resulting in cracking of the concrete.
其它网站的问题，纠正包括与作为在混凝土裂缝产生的驱动器相同的底基层的问题前廊。
3.This version of the materials by the subbase and photoptic layer, layer of Defense.
这种版材由底基层、感光层、保护层组成。
4.In Turkey, local material is used for subbase layer of flexible pavements.
在土耳其，当地的材料主要用于完成柔性路面的基层。
5.lateral segments obliquely flabellate, unequally 2-parted to subbase.
侧裂片斜扇形的，不相等的2深裂在近基部。
6.But local materials from some granular subbase material quarry are not used because of specification limits.
但是由于规格限制，当地来自于采石厂颗粒状的基底材料则不采用。
7.Application study of cool-regeneration subgrade and subbase technic on asphalt pavement
沥青路面冷再生基层、底基层技术的应用研究
8.Failure prevention in asphalt pavement with slag subbase and its maintenance and repair
谈矿渣基层沥青路面主要病害的防治
9.Construction quality control of the cement stabilization gravel subbase
水泥稳定砂砾基层施工质量控制
10.Application and Construction Characteristics of Cement Stabilized Rock Soil in Highway Subbase
水泥稳定碎石土在路面底基层施工中的应用和施工特点