Inflow of anabranches together with the erosion of riverbank and riverbed is important to the evolution and the sustainable function in middle - lower reaches of the hanjiang river 支流入汇和河岸、河底侵蚀一起，是影响下游河床演变、维持河道功能的重要因素。
It was a little dell where they had seated themselves , with a leaf - strewn bank rising gently on either side , and a brook flowing through the midst , over a bed of fallen 她们所坐的地方是一个小小的山谷，两侧的缓坡上铺满树叶，中间流着一条小溪，河底淹没着落时。
Or stone , chrysanthemum , a stone shaped like chrysanthemums found on the bottom of daxi river , yonghe town , liuyang city is shaped 20 miurcn years ago and it is a rare valuable stone in the world 菊花石又名石菊花，取之于湖南浏阳永和大溪河底石页之中，其花纹生于2亿多年以前，是世界上独一无二的名贵石料。
The trees impending over it had flung down great branches , from time to time , which choked up the current , and compelled it to form eddies and black depths at some points ; while , in 悬在溪上的树木常年来投下的大树枝，阻逼了溪流，在一些地方形成了漩涡和深潭而在溪水畅通流得欢快的地段，则露出河底的石子和闪光的褐砂。
Perhaps were knocked unconscious , and then we arent able to save ourselves . in such case it would be useless even if we finally came to realize it because we d only find ourselves at the bottom of the sea or river . most probably wed have just two more minutes to live 有的时候也不会知道，就像被人家打昏了，也没办法救自己，即使醒过来也没有用，醒过来只是看到自己已经沈在海底或河底，有可能两分钟以后就死了。
First , the system builds the model of the bank and bottom of river , according to the river ’ s information and the information of the scene on the two side of the river . second , i read and preprocess the model file data and implement the organization and encapsulation about the space data of the virtual river . in the end , adopting to use these rending technology , such as show list , priority texture , and level of detail , i realize the real - time and vivid showing of the three dimension river ’ s virtual scene and provide abundant ways of people ’ s interacting with the virtual scene , on base of sufficiently making use of the memory of vision card and the cpu of the computer 它主要融合虚拟现实技术、三维数据可视化技术、面向对象的设计和编程技术,在vc + +平台上,利用opengl三维图形开发库,以真实的城市河道现状信息和周边景物信息为依据,对河道、河底的三维空间数据进行三维几何建模;然后通过读取和预处理模型文件数据,实现虚拟场景空间数据的组织和封装操作,并对空间数据进行优化;最后采用显示列表、纹理优先级、细节层级模型( lod )等渲染技术,利用opengl的渲染特性,在充分发挥显卡内存、处理器等各种软硬件资源的基础上,实现三维河流实时逼真的真实感虚拟场景显示,并提供丰富的人机交互手段。
I had often stood on the banks of the concord , watching the lapse of the current , an emblem of all progress , following the same law with the system , with time , and all that is made ; the weeds at the bottom gently bending down the stream , shaken by the watery wind , still planted where their seeds had sunk , but erelong to die and go down likewise ; the shining pebbles , not yet anxious to better their condition , the chips and weeds , and occasional logs and stems of trees that floated past , fulfilling their fate , were objects of singular interest to me , and at last i resolved to launch myself on its bosom and float whither it would bear me 我常站在康科德河的岸边，望着逝去的流水- - -它是一切过程的象征，和宇宙，和时间及一切造物受同一法则的支配；那河底的水草随着水流轻柔地弯曲，仿佛受到水底清风的吹拂，此刻还在水底扎根，但不久后就会凋零并随波涛逝去；那闪亮的鹅卵石- - -它们还不急着寻找更好的去处，那砂石碎屑、藤蔓野草，和那偶尔从水面漂过、奔向命运尽头的圆木、树干，都使我产生了极大的兴趣，我最终决定泛舟于康科德河的胸膛之上，随它将我载去任何地方。
In low developed non - karat mountain area , the main water supply patten is fetching water from a river , water - fetching building is built mostly on the bank or at the bottom of the river , it seemed to be fetching water from underground , but the quantity of the water depends on the runoff of the river , so it has close relationship with surfacewater actually 摘要人类利用开发程度较低的非岩溶山区一般以近河取水为主要供水方式，取水建筑物多位于河岸或河底，从供水形式上看属于取用地下水，但取水量的大小依赖于河流流量，因此实质上和地表水关系更加密切。
