The subsurface flow system in the karst area is very complex because of the complicate dual processes of conduit and matrix flow in the system.
岩溶地下水系统由于管道流和扩散流同时存在而非常复杂。
To improve the normal operation reliability of follow-up wetland treatment system, some operation measures for constructing horizontal subsurface flow wetland under low temperature were put forward.
为提高后续湿地处理系统正常运行的可靠性，提出人工湿地在低温环境运行条件下的措施。
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