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1·Based on pulse test, the pulse response curve and flow recession curve are analysed for studying the structure of karst aquifer medium.

通过脉冲试验，采用测站脉冲响应曲线及流量衰减曲线分析，对后寨河流域含水介质结构进行了研究。

2·Faults and fractures will accelerate the recession of pore water, and make the pore water proportion reduce and the fissure water proportion increase in the recession curve.

构造断裂及破碎会加速孔隙水的衰减，使孔隙级水在衰减曲线上的比例减少，裂隙级水的比例增大。

3·The paper theoretically investigates housing cycle and inverted yield curve and empirically tests the result of combined prediction of economic recession by these two variables.

本文对房地产周期与收益率曲线反转对经济衰退的预测两个变量的联合预测进行了理论探讨和实证检验。

4·An inverted curve, with short rates above long ones, is usually seen as a herald of recession, as it turned out to be before the credit crunch.

反转的收益率曲线，也就是短期收益率处于长期收益率上方，通常被当做是经济衰退的预兆，在次贷危机爆发之前收益率曲线的形状就是这样的。