研究区洞群洞腔发育受区域构造裂隙的控制，与地下水文网的关系密切；
The development of the caves is in close connection with underground drainage network;
红层地下水水量受控于气候、地形地貌、地表水文网、岩性、构造运动等环境因素。
The groundwater allocation in red beds is controlled by environment factors such as climate, geomorphology, surface water system, lithology and tectonics.
珠江河口网河区的水文过程具有典型的非线性特征。
The hydrological process of the river network in Pearl River Estuary has a typical characteristic of nonlinearity.
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