河床

In connection with the estuary regulation of Yellow River, the effects from the channel-change of Qingshuigou Course and the branch-change of Qingba Anabranch for Yellow River on the extension of sedimentation are analyzed based on the prototype data and the model test result concerned, in which the effects from the dredging at the estuary on the water level of the tail course and the change from the river bed desiltation ate discussed.

黄河口治理具有长期性和复杂性，探求不同治理措施条件下尾闾河段冲淤规律是十分必要的。根据原型资料和模型试验结果，分析了清水沟改道和清8改汊对河口淤积延伸的影响，探讨了河口段挖河疏浚对尾闾河段水位、河床冲淤变化的影响。

The Anaconda prefers to be in the water, but they do enjoy spending some time on land in shallow caves by the water's edge, or in riverbank trees to bask in the sun.

它们更喜欢待在水里，不过也喜欢待在浅水区洞穴的地面，或者在河床树林里晒太阳。

This thesis combined the riverbed section and plane form, from the two side of hydraulic computation and model test, put forward the method to realized the automatic computation for river closure gap hydraulic parameters and comparison and verification. And through carrying on the secondary development to AutoCAD, realized the common software of automation drawing the topographical section of model test. Based on hydraulics computation technology, finished developing the common application software for one berm-dam vertical closure hydraulic computation.

本文结合河床断面与平面形状，从水力计算与模型试验两个角度出发，提出了实现龙口水力参数计算自动化并进行验证比较的方法；并且通过对AutoCAD进行二次开发，实现了模型试验地形断面绘制自动化的通用软件；同时以水力学计算方法为基础，完成了隧洞导流条件下单戗堤立堵截流水力计算通用应用软件的开发。

Its riverbed emerged and there was a thick layer of earth underneath, which could be used in the brickyard as brick or tile materials.

村子附近的沱江正值枯水期，河床露出来，下面是厚厚的黄土，正好做砖瓦厂烧纸砖瓦的原料，村里许多人都趁着农闲去挣这份辛苦钱。

The vane is a technique for river bank protection,which can alter direction of velocity and eliminate observably the centrifugally induced secondary current to reduce concaved bank scour and protrude bank sediment in river curves.

导流板是一种保护冲刷河道河床的技术。它能够改变水流的流向并能显著地减少弯道水流中的次生水流，从而解决了弯道中凹岸冲刷，凸岸淤积的问题。

To validate the model, the numerical simulation is performed for three cases: the wind driven circular flow, the dam-break wave on initial dry bed and the tidal flow in estuary of the Yangtze River. Results show that the model can accurately simulate the 3-D flow structure, and has good numerical stability.

封闭水池内部风生环流、干河床上溃坝过程和长江口实际潮流场的模拟从不同侧面展示了模型的特点，结果表明它能够准确地预测水流的三维流动结构，而且计算简单高效，具有良好的数值稳定性。

Life in Color: Brown A group of storks gathers to forage on a muddy Costa Rican riverbed.

意译：生活的颜色：棕色。一群白鹳收集到饲料在泥泞的哥斯达黎加河床。

A group of storks gathers to forage on a muddy Costa Rican riverbed.

一群白鹳收集到饲料在泥泞的哥斯达黎加河床。

First,erosion resulting from excessive deforestation in the upper reaches of the r ...

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

First,erosion resulting from excessive deforestation in the upper reaches of ....

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。