全部

1·Prior to applying a gravity model, one has to calibrate the impedance function.

应用重力模型的之前，你应该先校准阻抗函数。

2·The gravity model has offered the frame of a general equilibrium, experimental, easy to grasp.

引力模型提供了一个实验性的、易于掌握的、一般均衡的框架。

3·The gravity model is used for studying the mortality rate dynamics between two related but different sized population groups.

死亡率引力模型是研究两个相关但暴露数规模不同的人群的动态死亡率模型。

4·The density model in this depth is very much useful in the establishment of initial model and density space constraint for gravity modeling.

建立了这一深度空间内的密度模型，为利用重力场建模提供了初始模型和密度空间约束。

5·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。

6·The gravity model approach to international trade proves to be effective in the quantitative study of the geographical factors influencing bilateral trade.

国际贸易的重力模型方法对量化研究双边贸易中的地理因素是非常成功的。

7·Gravity model is a good tool to explain the direction and flow of bilateral trade, and has gained success on the empirical research in international trade.

引力模型作为解释双边贸易流向和流量问题的有力的分析工具，已经在国际贸易实证研究中获得了相当的成功。

8·By using the EGM96 model and the simulated improved gravity model after GOCE mission for gravity compensation, the accuracy of INS is analysed respectively.

分析了分别采用现有重力场模型EGM96和实施GOCE任务后改进的重力场模型进行重力补偿，惯导系统所能达到的定位精度。

9·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。

10·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。