Firstly, it directly influences the periodic variation of precipitation and air temperature, then influences the periodic variation of runoff based on the underlying surface.

天体运动直接影响降水和气温的周期变化，进而在一定的下垫面条件下，影响径流的周期变化。

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The large pressure decline in the pumping centre caused the deep-seated confined fluids to develop periodic tectonic pumping, hydrofracturing and precipitation healing in the sodium-rich rock series.

泵吸中心巨大的压力降使深部的承压流体在富钠质岩系中产生周期性的构造泵吸—水力压裂—沉淀愈合作用。

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The periodic change of the precipitation led to a same change trend with the streamflow abundant or dry up in Qingshui River, but only with time lag slightly.

降水的阶段性变化特点使清水河也表现出基本相同的丰枯特点，只是时间上略有滞后；

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