堰

A deep lake of melt water formed behind the frigid dam, fifing several valleys in Idaho and western Montana.

冰堰后面，冰雪消融形成了深深的湖泊，灌满了爱达荷州与蒙大拿州西部的若于个山谷。

Hunting technologies include several types of harpoons, the bow and arrow, knives, and fish spears and weirs.

剑杖几种技术包括狩猎、弓箭、刀、矛、鱼堰。

As of May 27, 2008, 34 large quake lakes had formed in nine earthquake-affected counties, the most precarious being that located in the extremely difficult terrain of Mount Tangjiashan.

目前正在深入开展有关堰塞体的几个具有挑战性的关键力学问题研究。

During the computation of dike burst, this thesis used the formula of the broad-crested weir without bank to fulfill it. And the whole course is realized through the computer programs. In addition, this thesis uses the grid format of GIS to establish the discrete elevation data of the flood submerging range.

在进行溃口计算过程中，本文采用无坎宽顶堰流公式来进行计算；另外，本文运用GIS里面的栅格数据格式来建立淹没区内离散的高程数据。

During the computation of dike burst, this thesis used the formula of the broad-crested weir without bank to fulfil it. And the whole course is realized through the computer programs. In addition, this thesis uses the grid format of GIS to establish the discrete elevation data of the flood submerging range.

在 进行溃口计算过程中，本文采用无坎宽顶堰流公式来进行计算；另外，本文运用GIS里面的栅格数据格式来建立淹没区内离散的高程数据。

In recent years, weir type diaphragm valve designs have evolved to meet the needs of the Pharmaceutical/Bioprocessing Industries.

近年来，堰式隔膜阀的设计演变，以满足药品的需求/生物加工产业。

The main works of this paper are as follows.First, according to the three-step method, 1-D unsteady flow model in river network is introduced. A new topological structure is presented to describe and store the topology information and data in river network ,which realises the connection between GIS and the numerical program of hydraulic calculating and turns the program into a universal one .A new formula of internal boundary conditions with double-recursion algorithm is deduced, and the relationship of recursive coefficient between imaginary channel length and non-imaginary channel length is presented ,which makes sure that the model can comprise the numerical simulation of the internal boundaries such as side pipe outflow ,barrage, slice gate and drainage pump station.

主要工作如下：(1)根据三级解法建立了一维河网非恒定流模型，并提出了一种新的数据结构来描述和储存河网拓扑信息，方便了GIS平台和数值计算程序的衔接，实现了三级解法程序的通用性；从河段方程组出发，根据虚设河段法推导出了内边界条件的双追赶法公式，指明了虚设河段的追赶系数和非虚设河段追赶系数的关系，从而使模型可以模拟集中旁侧入流、堰、闸、水泵等内边界对行洪过程的影响。

The muddy lattice of marshes, bayous, and barrier islands that makes up southern Louisiana is different.

而那分布得错落有致的湿地、海湾、堰洲岛曾使路易斯安纳州南部的风光绚丽多姿，现在这种格调已不复存在。

But, in the Chia-nan IA, among 13 places of main intakes investigated, 4 places are bad in water quality, another place is already fallowed for several years, only left 8 places scattered over within 70000ha.

以新竹会而言，改善竹东圳3号虹吸工(约需2，200万元)、明渠加高(约需400万元)，在提高通水容量下，约可增加7，140万 m3之进水量，可确保从上坪拦河堰取水并贮蓄在宝山水库。

LIQUID FLOW MEASUREMENT IN OPEN CHANNELS BY WEIRS AND FLUMES.

NF X10-312-1986 用溢流堰和水槽法测量明渠中的液流。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。