河渠

Having proven the transformation between the analytical solution and some relevant classic formulas,suitable condition for each of these formulas is demonstrated.

根据模型解，逐一定量研究下述变量，如垂向入渗强度、河渠水位变动幅度、含水层结构参数如给水度和导压系数、计算点与边界之间的距离，对渗流过程的影响。

The goals and the principles of conception for a river ecology restoration project are analyzed. The project used as the study case demonstrates that the traditional design method for a water resources project causes the channelization of a river and this leads to numerous adverse effects on the ecological system of a river.

从20世纪70年代开始科学工作者就对基西米河渠道化工程引起生态系统的退化进行了长期的观测研究，同时组织了论证与评估，研究如何采取工程措施和管理措施对于河流生态系统进行修复。

Based on the first linearized Boussinesq equation, analytical solution of the transient groundwater model, which is used for describing phreatic flow in a semi-infinite aquifer bounded by a linear stream and subjected to time-dependent vertical seepage, is derived out by Laplace transform and the convolution integral.

在河渠边界控制下的半无限含水层中，对时变垂向入渗影响下的潜水非稳定渗流模型，利用Boussinesq第一线性化方法，通过Laplace变换并结合卷积原理，导出模型的解析解。

In revetment engineering, turf is an effectual scour protection upper layer against exterior flow field for river bank that has low permeability.

在护岸工程中，草皮作为低渗透性河渠中抵御外部流场的表面防冲层十分有效。

Summarize : L301 Dive into- type static pressure liquid level transmitter can measure level of liquid in uncorking vessel、river、trench、lake and wells.

L301投入式液位变送器可以用来测量开口容器及河渠、湖泊、水井中的液位。

Aqueduct Bridge is a sort of structure on stilts by transporting water spanning river, valley, billabong and road etc, it also can drainage floodwater and diversion excepting water transfer, it is the most abroad across building applied in the middle of irrigated area water project construction, not only quantity is great but also technology is complicated.

渡槽是一种输送渠水跨越河渠、山谷、洼地和道路等架空建筑物，除了输水外还可排洪水、导流等之用，是灌区水工建筑物中应用最广泛的一种交叉建筑物，不仅数量大，而且技术复杂。

Overview Glycogen degradation and glycogen synthesis are controlled both by allosteric regulation and by hormonal control.

变构控制和共价修饰磷酸化酶存在有磷酸化的活性 a 型河渠磷酸化的正常情况下无活性的 b 型。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。