河流

Some say love , it is a razer , that leaves your soul to bleed .

有人说，爱是一条河流，吞没了柔软的芦苇地。

A three-dimensional numerical model is developed to simulate reaeration in rivers using a body-fitted coordinate system .

本文建立了适体坐标系下的河流三维复氧数学模型。

The oxygen transfer theory,can't be used to predict the reaeration coefficient of the rivers due to some undetermined parameters such as liquid film thickness ,the mean time of travel,surface renewal rates.

氧传质理论因存在不确定的参数(象液膜厚度，旋涡在界面的停留时间，表面更新率等)而不能用来预测河流复氧系数。

As an often used physical model with good theoretical and practical values, StreeterPhelps model has been widely used to study water quality. However, in some special water areas the utilitization of StreeterPhelps model has some limitation as confirming reaeration coefficient often comes from tests in rivers with fast water flow speed with no consideration of wave effects. Furthermore, in practical research in Three Gorges Reservoir, the changing rule of COD appears abnormally. In some water areas far from pollution source, the value of COD changes with time, but does not follow the exponential attenuation rule. This phenomenon can not be explained by former modified StreeterPhelps model.

StreeterPhelps模型是目前进行河流水质研究常用的物理模型，具有良好的理论和实用价值，然而在某些特定水域，该模型的应用受到限制，主要原因是复氧系数的取定多在水流速度较大情况下得到的，而未考虑水面波动对复氧系数的影响，另外，在实际研究过程中发现三峡库区COD变化的规律出现异常：在离排污口相当远的水域，COD随时间变化趋势并不是指数衰减，而是在某个常值附近微小摆动，以往很多修正过的StreeterPhelps模型都无法解释这个现象。

However, in some special water areas the utilitization of StreeterPhelps model has some limitation as confirming reaeration coefficient often comes from tests in rivers with fast water flow speed with no consideration of wave effects. Furthermore, in practical research in Three Gorges Reservoir, the changing rule of COD appears abnormally. In some water areas far from pollution source, the value of COD changes with time, but does not follow the exponential attenuation rule. This phenomenon can not be explained by former modified StreeterPhelps model.

StreeterPhelps模型是目前进行河流水质研究常用的物理模型，具有良好的理论和实用价值，然而在某些特定水域，该模型的应用受到限制，主要原因是复氧系数的取定多在水流速度较大情况下得到的，而未考虑水面波动对复氧系数的影响，另外，在实际研究过程中发现三峡库区COD变化的规律出现异常：在离排污口相当远的水域，COD随时间变化趋势并不是指数衰减，而是在某个常值附近微小摆动，以往很多修正过的StreeterPhelps模型都无法解释这个现象。

But the Tibetan plateau itself,with its mountains ,glaciers,and rivers, and as the engine that drives the monsoon,lays fair claim to being the real axis of the world.

但青藏高原本身，有着山脉、冰川和河流，作为季风产生的动力，是名副其实的世界屋脊。

The group will move over the river to the red-light district in the city, where the enemy's headquarters are situated.

该小组将越过河流进入市内红灯区，敌人的总部就设在那里。

The famous Indian River Lagoon offers fishing for Redfish, Snook, Trout, and Tarpon aside from bass fishing.

印度著名河流捕捞鲑鱼提供泻湖、snook、鳟鱼、鲈鱼tarpon除了捕鱼。

While his beverages were refreshingly cooled with ice, brought at great cost from the American lakes

无论是自源的或他源的，在湖泊与河流的总代谢系统中都可能是重要的。

Consequently,the Yellow River was replenished with water to become the modern river system.

在这一过程中黄河得到较多的水量，贯穿成现代的河流系统。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。