有效性

Considering the particularity of XML data to XML data transformation, we present some optimization approaches, including caching, graph reduction, path expansion, and FIXT index, etc., to improve the efficiency of XTG evaluation.

最后，我们在TREX系统中实现了上述优化技术，并在数据集上做了相应的对比实验，验证了这几种优化技术的有效性。

However, on Christmas Eve 1914 on a field in Flanders, there was Peace on Earth.

这些试用资料可能并不完整，有效性和正确性也无法保证。

Now it has been more and more widely used because of its flexibility and efficiency.

由于它的灵活性和有效性，现在这个方法已经得到越来越广泛的应用。

Finally, simulations for a flight control system are given to demonstrate the effectiveness of the approach.

最后，对飞机控制系统的仿真验证了该方法的有效性。

The simulation result for a flight control system illustrates the effectiveness and feasibility of the proposed method.

最后，对一个飞控系统进行仿真，验证了所得结论的有效性和可行性。

The simulation results show the effectiveness of the design method of Flight Simulator control system based on the improved GA.

仿真结果表明了基于改进遗传算法的飞行仿真转台控制系统设计方法的有效性。

The simulation results and the experimental results applied to the three-axis flight motion simulator demonstrate its validity.

仿真和针对三轴转台系统的实验结果都表明了该方法的有效性。

In flight, enhancing combat survivability and increasing mission effctiveness need not only good flight trajectory command, but also appropriate flight attitude and status of the equipments onboard.

在飞行过程中，增强作战生存性和执行任务的有效性不仅需要控制好飞机的飞行轨迹，而且要求有恰当的飞行姿态、机载设备运行状态。

The management during flour mill construction project is introduced,so as to insure the quality and validity of project.

介绍了在面粉厂工程实施过程中，通过采用科学的项目管理方式，提高工程实施的有效性，确保工程质量。

The effect of this modeling method is proved by appling it to the analysis of a fly-back ZCS-QRC. The result show that the proposed method can give important physical insight of the relationship between the compensator and the controlled plant.

为了实际验证这种模型化方法在分析设计上的有效性，本文以一返驰式直流—直流转换器为例予以详细分析，并配合MATLAB的模拟，结果证明这种模型化方法不仅能够简化具有多重回授的转换器分析，并且对补偿器与转换器性能间关系的了解有所助益。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。