齿廓干涉引起单波谐波传动失效的问题迄今没有精确的理论分析方法。
The inefficient single wave harmonic drive caused by interference of tooth profiles has not been solved by exact theoretical analvsis; Screw is used in the paper as mathematical tool.
为了补偿激光外差干涉纳米测量中的非线性误差，提出了一种减小非线性误差的一次谐波方法。
To compensate of the nonlinearity error of heterodyne interferometers in nanometer measurement, a method for reducing the first harmonic nonlinearity is proposed.
结果表明两级喇曼压缩系统配偏振干涉能有效抑制主束谐波影响，以更高时间分辨测量等离子体的更高密度区域。
The result shows that with the aid of the probe beam, the electron density can be probed with a much higher temporal resolution and the disturbance of harmonic can be effectively avoided.
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