查询词典 Dam

The information refers to slopes in opencast mines, quarries, dam foundation excavation s and highway outs

这份资料提供了有关露天矿、采石场，坝基和公路堑的边坡资料。

Limited by the spatial resolution, it is difficulty to extract small pieces of the distribution of soil and water conservation practices, such as terrace, orchard, grass, plantation land and dam land based on these images.

梯田、果园、人工林草地和坝地等水土保持措施呈小片状分布，由于受到分辨率的限制，不能有效提取。

To analyze the feature of dam-break flow in natural channel bends,channel-fitted orthogonal curvilinear coordinate system is established and two-dimensional shallow water equations are derived in this system through coordinate transformation,simplification and depth integration.

为分析溃坝波在天然弯曲河道中传播的特点，建立了跟踪河道走向的正交曲线坐标系，并通过坐标变换、简化和水深积分推导出了曲线坐标系下的二维浅水方程。

The main contents of this dissertation are as follows:1 A station orthogonal coordinate system, which is the reference coordinate system for the three-dimension adjustment of observation data of GPS dam deformation monitoring network, has been put forward.

主要包括内容以下：(1)提出了以站心地平坐标系作为GPS大坝三维变形监测网平差的参考坐标系，推导了在该坐标系下GPS大坝三维变形监测网平差的数学模型及公式；采用拟稳平差的方法对GPS大坝三维变形监测网观测数据进行处理。

Also, a method of quasi-stable adjustment and a software system researched and explored by Visual BASIC Language have been used to process the observation data of GPS dam deformation monitoring network..3 A mathematical model of three-dimension combined adjustment with GPS and other surveying data under station orthogonal coordinate system in deformation monitoring networks, has been brought forward.

提出了站心地平坐标系下GPS观测数据与其它地面测量数据三维变形监测网联合平差的数学模型，在数据处理模型中通过参数化的方法消除或减弱垂差和垂直折光的系统误差的影响。

By changing overburden dynamic parameter, it reviews influence of the stratum change on the dam body.

通过改变覆盖层动力特性参数，考察地层刚度的变化对坝体反应的影响。

So a method that combining the model experiment and numerical computation are discussed in this paper. The flow-induced vibration response of the plane recumbent gate in ShangHai qingshui river is computed in this method, and the result is reasonable and credibility, this method can be extend to compute the other hydraulic structures like overfall dam, guide wall, gate pier and so on, which is under fluctuating pressure.

由此探讨了一种将水力模型试验跟数值计算相结合来计算闸门流激响应具体值的方法，并应用于上海清水河泵闸水下卧倒门的流激响应计算上，结果合理可靠，该方法可以推广应用于溢流坝面、导墙、闸墩等受水流脉动荷载作用的其它水工建筑物。

Xihe waterpower plant lies upriver of HanJiang river in Shaanxi province, and there are five exterior overfall arc water gates on the dam.

摘 要：喜河水电站位于汉江上游陕西省石泉县境内，坝顶设5孔溢流弧形工作闸门。

In this paper the temperature field and thermal-creep-stress field in roller compacted concrete overflow dam during construction and operation are simulated and the distribution law of them are systematically studied by an example.

本文通过一典型算例对碾压混凝土溢流坝施工期和运行期温度场、徐变应力场进行了全过程仿真分析，较为系统的研究了碾压混凝土溢流坝施工期和运行期温度场、温度徐变应力场的分布规律。

The hydraulic experiment show that there is a large negative-pressure area on the weir surface in the old project which has bad effects on the stable operation of the overflow dam, so the configuration optimization is necessary.

模型试验表明：原设计方案的堰面存在大面积负压，不利于大坝安全运行，需要对复合堰的体型进行优化。

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。