水流

In this paper, from Bernoulli's equation of silt-laden water flow, the formulae of cavitation coefficient and static draft head of a hydraulic turbine in silt-laden water flow are ascertained theoretically.

本文以含沙水流时的伯努利方程为依据，从理论上推导了含沙水流时水轮机的汽蚀系数与吸出高度计算公式；

The hydrodynamic model of surface water flow movement possess a better simulation precision but because its calculation is relatively complex and the disposal of borderline condition is comparatively difficulty, study on this model is a little deficient and further research is needed.

地面水流运动的全水流动力学模型具有更高的模拟精度，但是由于其计算比较复杂，边界条件处理起来比较困难，在这方面的研究与应用还比较欠缺，有待于以后对其作进一步研究。

According to the characteristics of estuarine tidal current, its movement law in the Yangtze River Estuary is studied by analyzing measured data of water flow obtained from ADCP.

针对河口水流运动特性，采用ADCP实测水流资料对长江口水流运动规律进行研究分析。

The charateristics of the radial contracted flow is analyzed and the expression of the surface slope of the flow is obtained.

首先分析了辐射收缩水流的特性，得到了辐射收缩水流水面坡度的表达式；

Cross-currents can sweep the strongest swimmer helplessly away.

即使最强壮的游泳者也会无助地被交叉水流冲走。

Buckingham recognized the analogy between potentials in unsaturated-flow systems and in other flow systems.

白金汉认为在非饱和水流体系和其他水流系之间的势有相似性.

The current of the river is fast flowing and treacherous.

这条河水流湍急，变幻莫测。

Pump selection, the current host of water flow than 15-20 % or so.

水泵选型时, 其水流量比主机水流量大15%至20%左右.

The couple were swept away by the strong current.

这对夫妻被巨大的水流卷走了。

The current flows in little bursts.

水流小股小股地涌出来。

He let his fingers trail in the water.

他把手伸进水里，任水流滑过指间。

She hung on as the freezing, rushing water cascaded past her.

她抓得紧紧的，任凭冰冷湍急的水流从她身上倾泻而下。

The water burbled over gravel.

水流过卵石，汩汩作响。

I heard a gush of water.

我听到一股水流涌出。

The relationship between land slope and sheet flow erosion was studied on the base of erosion force of sheet flow.

该文从薄层水流侵蚀的动力入手，分别研究了薄层水流侵蚀动力及雨滴击溅与薄层水流动力共同作用下地表坡度与薄层水流侵蚀量的关系。

Various factors influencing culvert flow pattern discriminant are analysed. Based on the results of hydraulic model experiment, influence of the change of culvert structure shape on flow pattern discriminant is discussed. Methods of correcting "K" in flow pattern discriminant are proposed.

本文分析了影响涵洞水流流态的各种因素，根据水力模型试验成果讨论涵洞结构形态变化对过涵水流流态判别式的影响，提出了对现行判别式中K值的修正方法。

Fish and seaweed rose, caught motionless in the surging water.

鱼和海藻浮起来，在汹涌的水流中动弹不得。

She's dribbling on her collar.

她的口水流到了领子上。

The field trip involved crossing a raging torrent.

实地考察时要穿过一条水流湍急的河。

A barrage would halt the flow upstream and lift the water level.

一道拦河坝将会在上游拦住水流，抬升水位。

The drag forces are the major forces that make the object move in the horizontal direction.

淹没在水流中的物体所受到的水流作用力,一般分解为水平拖曳力和垂直上举力.

The rate of channel bed scour in sediment laden flows are experimentally studied.

在清水水流河床冲刷率的实验研究基础上,本文进一步研究了挟沙水流来沙率对冲刷率的影响.

Based on the assumption that the flow surface is an exponential curve, the Manning formula is applied to deduce the equation expressing the advance process of the irrigation water flow in ditches.

根据水流水面线为幂函数曲线假定用满宁水流公式，推求了水流在畦田推进过程的表达式。

The raft gathered speed as the current dragged it toward the falls.

水流将木筏拽向瀑布，木筏的速度越来越快。

A jet of water poured through the windows.

一股水流从窗口喷涌而入。

The study of this paper can deepen the recognition of vertical distribution in open channel flow.

通过对明渠含沙水流垂线流速分布特性的研究,增强了对明渠含沙水流垂线流速分布规律的认识.

Based on three-turbulence numerical simulation technique, the internal pattern and hydraulic characteristics were studied about new style outlet conduit namely called tank-like outlet passage which has been used in special low-water head city flood prevention pumping station for recent years.

运用三维湍流数值模拟的方法，对近年来应用于特低扬程大型泵站中的一种新型出水流道&箱涵式出水流道内流场特征及水力特性进行分析研究。

Experiments were carried out to study the influence of water diversion on the sediment transport capacity.

浑水分流后,一般会改变水流的含沙量,或者影响水流的稳定输沙状态,引起河床的冲淤变化.

The water rushed through the holes with great rapidity.

湍急的水流奔涌过洞口。

The river is too swift to swim. She had to swim against the current.

这河水流太急，不能游泳。她必须逆着水流往上游。