进而说明近年来潼关高程不断抬升是潼关上下游河道纵剖面自动调整的必然结果。

The results show that the continuous rising of water level at Tongguan in present years is the inevitable response of automatic adjustment of slope in the upper and lower reach of Tongguan.

三门峡水库蓄水运用2年后，潼关高程急剧抬升。

After 2 years operation of the Sanmenxia Reservoir, the elevation at Tongguan run sharply up.

旧函谷关、新函谷关和潼关，是崤函古道上先后兴替的三座雄关。

The Old and New Hangu Passes and Tongguan Pass used to be the three impregnable passes along the ancient Xiaohan Road.

因此，研究不同潼关高程对渭河下游冲淤及洪水位的影响具有迫切而重要的现实意义。

Accordingly, it is urgent and important to study the effect of different Tongguan riverbed elevations on aggradation and degradation as well as the flood elevation of the lower Weihe river.

用这两种方法对黄河潼关水文站水沙序列进行了预测，经计算表明，改进的时间序列方法有效地提高了预测精度。

These two methods were used at Tongguan hydrometric station to test flow and sediment forecasting and the results computed have shown efficiently improved accuracy of prediction.