坝

The results of saline water irrigation (1990~1995) showed that the yields of wheat, corn, cotton and grain increased 30% more than those of non-irrigated crops. In the condition of spring irrigation and concentrated rainfall, the soil desalinized in root zone, and the accumulated salt due to saline water irrigation can be leached; reasonab...

三坝浅层地下咸水灌溉试验( 1 990～ 1 995)的研究结果表明，利用 3.0～ 5.1 g/ l的咸水灌溉小麦、玉米、棉花和高粱，均比不灌的增产 30 %以上；在春季河灌和汛期集中降雨淋洗的条件下，作物根层土壤不积盐；实行咸淡水轮灌，增辟水源，改善水质，可获作物增产。

In the work area, the Jurassic system Shaximiao gas reservoir is dominated by distributaries channel sand, mouth bar sand of river-lake delta depositianal system and fracture. The lateral change of the reservoir is fast, distribution rule of the gas reservoir is complex in vertical and horizontal direction. The gas reservoir is dominated by lithology and tectonic action etc. It is a lithological gas reservoir base of structural setting.

工区侏罗系沙溪庙组气藏受河流－湖泊三角洲沉积体系下的分流河道、河口坝砂体及裂缝综合控制，储层横向变化大，气藏纵横向分布规律复杂，受岩性、构造多种因素综合控制，为构造背景上的岩性气藏。

Where do we get materials for the dykes?

我们从哪里取得建坝的材料？

The layout of dam system is base of dam system plan, it is very important for economizing investment.

淤地坝规划的基础是坝系布局，布局合理与否关系最后投资。

In this case the acronym of choice is REPEL (Rapidly Emplaced Protection for Earthen Levees).

这种装置的全称是&泥土坝便置保护装置&，其英文首字母的缩略语REPEL也正好有&防御&的意思。

The Piper Cheyenne PA 31T twin Turboprop was first available in 1974 and was a direct development of the popular PA-31 Navajo piston engined twin.

该伯尔夏延坝三十一吨双涡轮螺旋桨是第一个可用的在1974年，是一个直接的发展，流行的PA - 31纳瓦霍活塞引擎双。

First of all, for the geological features of mud enwrapping sand, seismic features of shallow buried depth, low formation velocity and high resolution of delta front belt, the strong amplitudes of mouth bar sand and underwater distributary channel sand have been clearly recognized with the help of amplitude attribute slice of high-fidelity 3D seismic data along the formation, i.e.

首先针对松辽盆地三角洲前缘相带泥包砂地质特征及埋藏浅、层速度低、分辨率高的地震特征，利用高保真三维地震资料沿层振幅属性切片，有效地识别出了河口坝和水下分流河道砂体的强振幅地震反射特征，即砂岩储层的地震&亮点&特征。

However, some old gravity dams were not grouted well, even not grouted at all due to some historical reasons.

但是，由于历史原因，一些现役的老坝，其纵缝在建造初期没有设置键槽、灌浆不善甚至没有进行灌浆处理。

Numerical simulation is carried out to simulate the evolution of deformation and stress of a core-wall type rockfill dam during the first water impounding.

将该模型应用于心墙坝初次蓄水时应力变形的亚塑性计算分析中。

Faisal - The first thing is, it's a dam. It impounds the river and it creates an open body of water which is an artificial reservoir or a lake and that itself, being exposed to the sky and the sun, creates a huge source for moisture in the air.

Faisal -首先，它是一座坝，它可以拦截河流，然后形成一大片的水域即人造湖泊，大片的水面暴露在天空和太阳之下，在空气中形成很大湿气源。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐