A design method for low phase noise agile X-band frequency synthesizer is presented, the theoretic analysis and calculation is performed and the test results are given.

介绍一种低相噪、捷变频x波段频率综合器设计方法，并进行理论分析、计算，最后给出测试结果。

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Therefore, it is proposed that creep parameters determined by test data in one year are adopted in practical engineering to assure a good precision in analysis and calculation of structures.

因此，建议在实际工程中可用一年左右的试验数据确定的徐变特性参数来对结构进行分析和计算，就可保证足够的精度和准确性。

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Through the calculation and analysis of the test data, some valuable informations of heavy duty locomotives run on Qinghai-Xizang railway are then provided.

通过对高原试验数据的计算和分析，提供了大功率内燃机车在青藏铁路运行的技术资料。

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