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1·The natural frequency, damping ratio and mode shape of a multi-degree-of-freedom system are analyzed and the identified results are in good agreement with the theoretical values.

并针对一多自由度系统具体论述了固有频率、阻尼比和振型的识别方法，识别结果与理论结果吻合较好。

2·The Linear Frequency Modulated Continuous Wave (LFMCW) Radar has high theoretical range precision and can be used for range tracking.

线性调频连续波(LFMCW)雷达在理论上有很高的测距精度，可用于对目标的距离跟踪。

3·The orthogonal sampling demodulating technique for low frequency time-code signal is introduced. Based on the theoretical analysis about its principle and implement method, The simulation is tested.

作者提出低频时码信号的正交扫描解调技术，从理论上分析了正交扫描原理和实现方法，并进行了仿真测试；

4·The theoretical and experimental results are presented, which show the low axial ratio and low loss characteristics over octave frequency band of the polarizer.

给出理论和实验结果，证明了这种四层曲折圆极化器可以在倍频程范围内得到良好的低轴比、低损耗特性。

5·Based on the model, analysis and revising in frequency domain, several parameters are taken around the theoretical revising parameter, both resistance load and welding experiments are carried out.

在此基础上用频域法进行分析和校正，在理论校正参数附近取多组实际校正参数，分别进行电阻负载实验和焊接工艺实验。

6·The theoretical results show that for TM waves there exist frequency passband (s) and stopband (s) which can be switched into each other by varying the power.

理论分析表明，非线性TM表面波存在频率通带和禁带，通过调节导波功率可以实现通带和禁带之间的转换。

7·This paper presents systematic theoretical calculations and the experimental investigations of the doubling frequency character of the crystal KN grown in China.

本文首次对我国生长的铌酸钾晶体的光学倍频特性进行了系统的理论计算和实验研究。

8·The L-moment method has theoretical advantages in hydrologic frequency analyses, but less practical application because of its complexities in calculation.

线性矩法在水文频率分析中具有理论优势，但因为计算复杂而实际应用较少。

9·A four frequency eddy current inspection instrument was developed based on theoretical analysis and simulative tests.

在理论分析和大量模拟试验基础上研制了四频涡流检测仪。

10·Transmission parameters such as numerical aperture and normalized frequency of the fabricated holey fibers have been measured and compared with theoretical values based on effective index method.

测量了拉制成的有孔光纤的数值孔径和归一化频率等传输参数，并基于有效折射率方法与理论值进行了比较。