渗透垫层 meaning in Chinese

filter blanket

However , routing the road over the went landfill or its proposed expansion zone is not feasible due to space requirements of the landfill ( assuming an at - grade road ) and the incompatibility between raised roadway supports and the landfill s impermeable liner ( assuming an elevated road )
可是，将道路跨越新界西堆填区或其建议扩展区域都并不可行，因为需要在空地堆放填土(假设是一条地面道路)和升高道路支撑物和填土的防渗透垫层(假设是一条高架路) 。