查询词典 isochrones

Significant improvements to the TOPMODEL were made on the distributed computation of runoff yield in the mesh scale which is equivalent to that of DEM in one hand,and an isochrones hydrograph was calibrated from rainfallrunoff observations for watershed convergence simulations on the other hand.These improvements were made to enhance the simulation ability of the TOPMODEL,meanwhile to extend the model′s adoptability in rainfallrunoff simulations to middle and large scale watersheds.

考虑到流域地形、下垫面条件及流域气象条件的空间差异性，将TOPMODEL的产流计算细化到每个栅格，以改进模型的分布式计算，并在考虑地形坡度影响的情况下，根据降水-径流资料优选出的参数率定等流时线、利用率定的等流时线进行流域的汇流计算，以提升TOPMODEL在中、大尺度流域模拟演算的能力。

Calibration of b-y indices by the infrared flux method and surface gravities are calculated from Hipparcos parallaxes, which also allow more accurate ages to be interpolated from a comparison of M〓 and T〓 with isochrones.

利用精确的依巴谷视差计算绝对星等也使年龄的确定更可靠。

The prestack migration into space should be based on accurate isochrones through the heterogeneous velocity model and the wave incidence angles.

空间迭前偏移是基于精确的通过不均匀速度模型的等时线和波的入射角。

The ray paths and the isochrones can be described by analytical expressions.

射线路径及其走时可以由解析式给出。

At last, this model is validated by two floodwater in 1998 in the area, because the reservoir is not completed, in order to test how much water flew to reservoir in the two floodwaters, isochrones process of the watershed is simulated, the results fit well.

最后，本文对1998年流域的两次洪水入库量进行验证，鉴于水库还没有建成，为了便于比较本文还进行了洪水过程线模拟并取得较好的效果。

Thirdly, the thesis paid close attention to the isochrones of pore water pressure in the engineering cases of slope under the conditions different rates of change water level and raining by using numerical simulation on the basis of saturated-unsaturated theory. From the result, the change of groundwater and water level in front of slope is not synchronized .

结合工程实例，采用数值模拟，结合非稳定饱和-非饱和渗流理论，重点探讨坡前水位按不同速率变化及强降雨情况下，坡体内渗流场的时空分布特征，从计算结果得出，水位在上升或下降期，坡体内地下水位变化与坡前水位变化速率不同步，表明坡体内地下水位变化有明显的滞后特点。

The proper hydrology model on the gird cell plays an vital role in the Distributed Hydrology Model, In this paper, It is divided two parts in vertical section, they are up-ground and under-ground relating to rainfall, air temperature, evaporation and ooze hydrological model, At the same time, I integrate all indispensable data and found two databases which are geographical information database and hydrological information database, write program using computer language—VB to simulate process of isochrones of the watershed.

创建分布式水文模型的关建是建立一个合适的基于栅格单元的水文模型，本文将栅格单元在垂直方向上分为二层，即地表层和地下层，涉及到降雨、温度、植被截留、蒸散发、下渗等水文计算模型；并综合各类相关数据，建立了地信数据库和水文数据库，通过VB编程进行等时流线模拟计算。

Making use of this model I have a taste in Yan Shan Reservoir watershed in He Nan Province: I start on the information of the surface in this area, give every grid cell the proper parameters by distilling them from the map of how the people use soil and the map of soil type in this area; In order to get the topographical information, I add numerical value to a abundant of contour lines and points in topographical map, use the software Arc View of GIS to create Digital Elevation Models automatically, get every volume of the reservoir from the water level 99m to 117m. By using a special module of the software, I distill triumphantly the grid cells elevation value, slope value, flow direction, flow accumulation, watershed, stream network, isochrones and so on.

本文在分布式水文模型的基础上，对河南省燕山水库流域洪水入库计算模拟方面作了一些研究：从燕山水库流域的下垫信息开始着手，依据流域的土地使用类型图、土壤分布图确定每个栅格单元的土壤特性和土地利用方式，进行下垫信息的参数化，得到单元模型所需的参数值；为了提取地形信息，本文通过对流域地形图海量数据加载高程值，利用GIS软件自动生成流域内的数字高程模型，提取了流域水文模型所需要的库容曲线；通过栅格自动划分，提取栅格单元的高程、坡度、栅格流向、流域边界、虚拟河网、流量积累、等时流线面积分布等分布式水文模型的流域特征。

Epicardial potentials, electrograms, and isochrones were noninvasively reconstructed.

通过非侵入性方法重建心外膜电位、电记录图、等时线。

Epicardial potentials, electrograms, and isochrones were noninasiely reconstructed.

通过非侵入性方法重建心外膜电位、电记录图、等时线。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。