查询词典 river width

The paper studies the rational back aggraclation width of yellow river dike with reliable theory,researches and formulates the finite element reliability program of Monte-carlo filtration for calculate the failure probability of filtration stability for soil body of different distance from slope base of yellow river dike under design flood level,thus determines the rational back aggradation width.

利用可靠性理论对黄河堤防淤背设计的合理宽度问题进行了系统的分析研究，充分考虑了黄河堤防土体参数的随机变异性，研制了蒙特卡洛渗流有限元可靠度程序，用来计算在设计洪水位下距黄河堤防背河坡脚不同距离的地层土体渗流稳定破坏概率，从而确定合理的淤背宽度。

It is showed that the variation of the wetland width, which led to flood level fluctuation, could be finally summarized to the variation of the river channel width.

结果表明，不同湿地宽度对泄洪水位的影响，最终归结为主槽宽度的变化对泄洪水位的影响。

Result showed general scouring change would not influence t he safety of river-crossing project , but regulating river work should be done on the crossing section and its upstream channel , and the width of reinforced gabion protection should be 20 m in pear-shaped diversion dike.

结果表明，河道的一般冲刷变形尚不至于影响到穿河工程的安全，但应对交叉断面及其上游附近河道进行适当整治；梨形导流堤坡脚的钢筋石笼防护宽度以20 m 为宜。

There are a lot of factors to affect the rising rate of water level in the meandering Lower Yellow River and river width is only one of them.

认为影响黄河下游游荡性河道水位涨率的因素是多方面的，河宽只是其中的原因之一。

Numerical simulation results show that the typical features of primary flow, secondary flow and velocity redistribution in natural river bends are closely related to the special planform and flow depth conditions of natural river meanders. The lateral redistribution of flow is significant when water depth is small. The main stream approaches the concave bank upstream the bend vertex when river width is small.

数值试验结果表明，自然河流河弯中的主流、二次环流和流速重分布特征是与自然河弯的特殊几何形态特征、水深条件紧密相连的，水深越小则流速沿横向的重分布越为显著；河宽越小则水流动力轴线在凹岸的顶冲点越为提前。

The salient features of channel shrinkage in lower Yellow River are the large decreases of the bankfull discharge and bankfull area while some decreases of the bankfull width, average depth and maximal depth and some increases of the bankfull water level and width-depth ratio.

黄河下游河道主河槽萎缩的最显著特征就是断面平滩流量和平滩面积的显著下降，相应的平滩河宽、平均水深、最大水深出现不同程度的下降，另外可能还伴随着平滩水位和断面宽深比的上升。

This paper analyzes the trends and variations of cross-section profile parameters in lower Yellow River with the methods of time series analysis. The analysis results show that since 1950s, cross-section profile parameters in lower Yellow River have change with trend, especially after 1990s, the bankfull discharge and bankfull area all show decreasing trends at all the four stations. The bankfull width at Huayankou, Gaocun and Lijin station and the average depth at Huayuankou and Aishan station and the maximal depth at Gaocun station show decreasing trends while the bankfull water level at Gaocun and Aishan station and width-depth ratio at Aishan station show increasing trends.

本文采用时间序列分析的方法对黄河下游河道断面形态参数变化趋势及其变异点进行了分析，分析结果表明从20世纪50年代以来，断面形态参数发生了趋势性变化，特别是90年代以来各站平滩流量和平滩面积均有显著的下降趋势，花园口站、高村站和利津站平滩河宽出现了显著下降趋势，花园口站、艾山站平均水深显著下降，高村站和艾山站的平滩水位显著抬高，艾山站的宽深比也有显著增大的趋势。

At the meantime, the rationality of canalized regulation, the canalized design parameters, such as the canalized design flow, the design river width, the control lines, are analyzed to supply science foundation for canalized regulation.

文中对渠化治理的可行性及渠化设计流量、设计河宽、治导线等参数进行了分析，为渠化治理提供科学依据。

Using the tree - ring width chronologies in Kuitun River, this study investigated the relationships between tree growth and September runoff of Kuitun River.

：利用奎屯河流域树轮年表资料，分析树木生长与河流流量变化的关系，重建了奎屯河379a9月的径流量，并分析其变化特征。

This paper divides river width into section and calculates radom unsure measure in every section,system uncertain measure(u∧ s 1 ) and so on when the rate to width and depth is more than the range which is provided by "test standard of river discharge".

对单次流量不确定度计算，提出了在宽深比大于《河流流量测验规范》规定的范围时，可进行河宽分段，并计算每段随机不确定度和系统不确定度等各不确定度的方法。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。