以相差显微镜及成像分析技术测定纤毛运动频率(CBF)。
Ciliary beating frequency (CBF) was measured by phase contrast microscope and videotape analysis.
国外在这方面有较系统的研究，并提出了一种预测零频到超声波频率之间全部速度频散的分析技术。
It has been researched systematically on abroad, and an analysis technology was put forward to predict all the velocity's dispersive of frequency from zero to ultrasonic frequency.
调制域分析已经成为现代测试技术不可或缺的部分，在显现频率变化信号时优于时域测量和频域测量。
Modulation domain analysis has become an important part for modern measurement technology. It is better than time domain and frequency domain measurement when indicating frequency variable signal.
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