对现场的取样分析解释了显著的树冠损失的原因。排水不良地区的粉质粘土壤土和具有代表性的草原环境条件都在现场广为散播。
Forensic analysis of the site explained significant canopy loss. Poorly drained areas with silty clay loam soils - conditions more representative of prairie environments - were widespread on the site.
【缺点】：如遇排水不畅，容易积水浸泡，安装和维修不便，设备依赖性强，底部通风不良，电子部件易受潮。
[disadvantages] : in case of poor drainage, easy to soak water, installation and maintenance inconvenience, equipment dependence, poor ventilation at the bottom, easy to damp electronic components.
最近越南一系列的地陷，泰国高地的河流排水不良，和菲律宾的一个地陷描绘出了一条贯穿巽他板块的特别的线。
Recently a spate of sinkholes in Viet Nam, poor drainage of rivers in upland Thailand, and a sinkhole in the Philippines have drawn a remarkable line across the Sunda Plate.
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