用李萨如图形法测量声速误差较小。
The experiment error of sound velocity measuring is very small with lissajous figures.
用李萨如图形调整盒式磁带录音机走带速率的方法方便、适用。
The method of adjusting the running speed rate of cassette tape recorder by Lichtenberg' s figures is easy snd practical.
介绍了利用光滑导轨、弹簧振子、高亮发光二极管演示李萨如图形的方法。
Using smooth guides, spring oscillator and high brightness LED, a simple method of demonstrating Lissajous figure is introduced.
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