底基层 meaning in English
subbase
Examples
- Kish slag using as highway subbase course
石墨尾矿用作高速公路底基层 - Technical specification of roadbases and subbases with chemical stabilization
固化类路面基层和底基层技术规程 - Technical specification for road bases and subbases with chemical stabilization
固化类路面基层和底基层技术规程 - Sub - base road
路底基层 - Sub - base roa
路底基层