basecourse meaning in English

底层
基层

Study on the basecourse of phosphogypsum , lime and fly - ash stabilizing manganous slag
磷石膏二灰稳定锰渣基层材料的研究
A study of maintenance technology of asphalt pavement with semi - rigid basecourse on expressway
高速公路半刚性基层沥青路面养护检测与养护维修技术研究
Effect of the nonlinear property of the subgrade on the determination of the moduli of the subgrade , the semi - rigid subbase and semi - rigid basecourse was explored
文中分析了路基土非线性性状对路基土模量测定和对半刚性基层、底基层模量反算的影响程度和其结构响应状况。
We can use both calcium carbide dust and calcium carbide dust - flyash to stabilize fine - soil . as well as being used in subbase of high grade road , calcium carbide dust stabilization and calcium carbide dust - flyash stabilization can be used in basecourse of low grade road . so we can deduce that calcium carbide dust - flyash - gravel stabilization can be used in basecourse of high grade road
我们可以利用电石灰来稳定细粒土，利用电石灰和粉煤灰来稳定细粒土。通过数据分析，这种电石灰稳定土和电石灰二灰土完全可以刚于高等级公路的高级路面的底基层，也可以用于低等级公路的路面基层，同时推断，用电石灰和粉煤灰来稳定的级配碎石，可用于高等级公路的路面基层。