文件 | 时间 | 大小 | 下载 | |
---|---|---|---|---|
01-声音的产生.mp4 | 2022-08-28 20:29:07 | 95.16 MB | ||
02-声音的传播.mp4 | 2022-08-28 20:29:07 | 29.92 MB | ||
03-传声介质.mp4 | 2022-08-28 20:29:07 | 81.63 MB | ||
04-声速.mp4 | 2022-08-28 20:29:07 | 33.67 MB | ||
05-声音的特性.mp4 | 2022-08-28 20:29:07 | 59.07 MB | ||
06-响度和振幅.mp4 | 2022-08-28 20:29:07 | 61.82 MB | ||
07-音调的决定因素.mp4 | 2022-08-28 20:29:07 | 44.99 MB | ||
08-音调和频率.mp4 | 2022-08-28 20:29:07 | 68.44 MB | ||
09-水瓶琴(实验).mp4 | 2022-08-28 20:29:07 | 57.98 MB | ||
10-音色的决定因素.mp4 | 2022-08-28 20:29:07 | 32.46 MB | ||
11-听觉的频率范围.mp4 | 2022-08-28 20:29:07 | 78.45 MB | ||
12-超声波和次声波.mp4 | 2022-08-28 20:29:07 | 47.79 MB | ||
13-回声测距.mp4 | 2022-08-28 20:29:07 | 61.23 MB |