This paper describes a method for carrying out self-propulsion test of ship model in a gravity tank and the means of measurement.
本文介绍了在重力式水池中进行船模强迫自航试验的方法及所采用的测试手段。
On the basis of studying theoretical model with the above methods, we have introduced a multiple-cut method for identifying the regional gravity field and the local field.
在对上述方法进行理论模型考察的基础上，我们提出了一种划分重力区域场与局部场的多次切割法。
A grain logistics center location model based on extension theory is put forward, which applies extension decision method, cluster analysis and gravity method together.
综合运用可拓决策方法、聚类分析、重心法，建立了基于可拓理论的粮食物流中心选址模型。
The paper puts forward an improved method on the basis of gravity model to forecast the od freight volume of railway luggage and parcel transportation.
对铁路行包od运量的预测提出一种基于重力模型的改进方法。
Field gravity survey was an important method of gravity field model optimization.
野外重力测量是精化全球和局部重力场模型的重要手段之一。
By using threshold segmentation, edge recognition, pixel labeling and center of gravity method, the accurate sites of every model can be acquired from the image.
综合运用阈值分割、边缘识别和像素标记法等图像识别技术，通过图像得到每个模型的相关定位信息。
We found that the gravity model improved the modeling method for the future mortality of our country, and provided a more accurate forecast for the future mortality rate of China's population.
研究发现，引力模型改进了我国人口未来死亡率建模的方法，提供了更准确的预测。
This paper uses the combined finite-discrete element method with smeared rotating crack model to analyze the seismic rupture process simulation of concrete gravity dam under the action of earthquake.
应用联合有限-离散元法结合弥散式旋转裂缝模型分析了地震作用下混凝土重力坝动力破坏过程。
On the other hand, the precision gravity model is important guarantees for obtaining high precision orbiting results using the dynamic or reduced-dynamic orbit determination method.
低轨重力卫星轨道的精确确定是获得精密地球重力场模型的前提，而精密重力场模型又是获得高精度定轨结果的保证。
This paper is mainly about how to improve moving surface method of GPS leveling by means of earth's gravity field model.
为此，提出利用地球重力场模型改进GPS水准中移动曲面法的方法。
A practical model for earthquake movement input is proposed and the method for random seismic analysis of gravity dam is discussed.
提出了二维随机地震动输入实用模型，详细论述了重力坝结构随机地震动力响应的分析方法。
The disturbing point massds model has aroused great interest in geodetic community as a method of approximating the external gravity field of the earth.
扰动质点模型作为地球外部重力场的一种数值逼近方法，已经引起人们极大的兴趣。
The four stage method and a double gravity model were used to forecast the OD(origin-destination) distribution of air traffic flow in the whole airspace of China.
基于四阶段法，采用双重力模型，预测全国空域的交通流量OD分布。
A discrete crack model based on the extended finite element method (XFEM) was used to describe the nonlinear fracture of concrete gravity DAMS during earthquakes.
为了模拟重力坝在强震作用下的破坏过程，利用扩展有限元框架下的分离裂纹模型描述混凝土中的裂纹扩展。
In line with the large sample data bias of population mortality in China, we applied the gravity method to model it, together with a reference to the corresponding data in Japan.
本文针对中国人口死亡率抽样数据偏差较大这一特点，运用引力模型思想借鉴日本相应数据建模。
Method of regional height transformation based on earth gravity field model;
描述了地球重力场模型和中国海及邻域重力异常的特征。
Method of regional height transformation based on earth gravity field model;
描述了地球重力场模型和中国海及邻域重力异常的特征。
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