the method of treatment in situ of shallow karst road foundation with a soil covering and its good technical and economic benefits were introduced through a practical project example.
通过工程实例,详细介绍了有上覆土层的浅层巖溶路基就地整治办法,及其良好的技术经济效益。
the planter primarily consisted by suction metering mechanism, five disks device for residue cutting and furrow opening and fertilizing, a soil covering device and a pack roller.