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声波的形成与传播.jpg
声波的形成与传播.rar(2008-07-28 10:42:00, Size: 237 KB, Downloads: 79)
声波的形成与传播.rar(2008-07-28 10:43:49, Size: 57.4 KB, Downloads: 7)
声波的形成与传播(水波).jpg
声波的形成与传播.rar(2008-07-28 10:44:14, Size: 6.62 KB, Downloads: 8)
声波传播.gif
声波的形成与传播.rar(2008-07-28 10:44:31, Size: 69.4 KB, Downloads: 10)
声波效果.jpg
声波效果.rar(2008-07-28 10:44:52, Size: 5.92 KB, Downloads: 6)
声波.jpg
声波.rar(2008-07-28 10:46:49, Size: 6.55 KB, Downloads: 7)
声波的形成与传播.rar(2008-07-28 10:47:24, Size: 241 KB, Downloads: 3)
0728 秋韵老师 声波效果.jpg
0728 秋韵老师 声波效果.rar(2008-07-28 10:48:48, Size: 17 KB, Downloads: 6)
声波的形成与传播.rar(2008-07-28 10:50:59, Size: 22 KB, Downloads: 4)
728声音的形成和传播.jpg
728声音的形成和传播.rar(2008-07-28 10:52:17, Size: 124 KB, Downloads: 2)
波1.rar(2008-07-28 10:54:50, Size: 95.6 KB, Downloads: 5)
声音的传播.jpg
声音的传播.rar(2008-07-28 11:22:22, Size: 46.5 KB, Downloads: 4)
幻灯片1.JPG
幻灯片2.JPG
声音的形成和传播.rar(2008-07-28 11:26:40, Size: 269 KB, Downloads: 11)
声波的形成与传播图.jpg
水波图.jpg
声波的形成与传播.rar(2008-07-28 11:58:38, Size: 163 KB, Downloads: 6)
演示文稿1.rar(2008-07-28 13:28:14, Size: 36.3 KB, Downloads: 2)
水波的形成与传播.jpg
水波的形成与传播.rar(2008-07-28 14:17:39, Size: 56.7 KB, Downloads: 6)
轻微的水波.jpg
轻微的水波.rar(2008-07-28 15:15:11, Size: 66 KB, Downloads: 4)
声波的形成与传播.rar(2008-07-28 21:15:29, Size: 52.6 KB, Downloads: 2)
声波.rar(2008-07-29 12:05:14, Size: 117 KB, Downloads: 0)
声波的形成与传播.rar(2008-07-29 13:33:36, Size: 39.6 KB, Downloads: 0)
最新回复
太阳系 (2008-7-28 10:43:49)
[ 本帖最后由 太阳系 于 2008-7-28 14:17 编辑 ]
声波的形成与传播.jpg
(2008-07-28 10:43:49, Size: 57.4 KB, Downloads: 7)
声波的形成与传播(水波).jpg
slijuns (2008-7-28 10:44:14)
声波的形成与传播.jpg
(2008-07-28 10:44:14, Size: 6.62 KB, Downloads: 8)
白开水 (2008-7-28 10:44:31)
声波传播.gif
(2008-07-28 10:44:31, Size: 69.4 KB, Downloads: 10)
xinlinghexie (2008-7-28 10:44:52)
声波效果.jpg
(2008-07-28 10:44:52, Size: 5.92 KB, Downloads: 6)
et27 (2008-7-28 10:46:49)
声波.jpg
(2008-07-28 10:46:49, Size: 6.55 KB, Downloads: 7)
韵寒心 (2008-7-28 10:47:24)
声波的形成与传播.jpg
(2008-07-28 10:47:24, Size: 241 KB, Downloads: 3)
zhaoazhao (2008-7-28 10:48:48)
0728 秋韵老师 声波效果.jpg
(2008-07-28 10:48:48, Size: 17 KB, Downloads: 6)
燕儿07128 (2008-7-28 10:50:59)
声波的形成与传播.jpg
(2008-07-28 10:50:59, Size: 22 KB, Downloads: 4)
冰莲 (2008-7-28 10:52:17)
728声音的形成和传播.jpg
(2008-07-28 10:52:17, Size: 124 KB, Downloads: 2)
辛勤 (2008-7-28 10:54:50)
(2008-07-28 10:54:50, Size: 95.6 KB, Downloads: 5)
花落无痕1 (2008-7-28 11:22:22)
声音的传播.jpg
(2008-07-28 11:22:22, Size: 46.5 KB, Downloads: 4)
valkyria (2008-7-28 11:26:28)
梦之远 (2008-7-28 11:26:40)
幻灯片1.JPG
幻灯片2.JPG
(2008-07-28 11:26:40, Size: 269 KB, Downloads: 11)
轻轻小草 (2008-7-28 11:58:38)
声波的形成与传播图.jpg
水波图.jpg
(2008-07-28 11:58:38, Size: 163 KB, Downloads: 6)
※独立寒秋£ (2008-7-28 13:23:16)
[ 本帖最后由 ※独立寒秋£ 于 2008-7-28 13:28 编辑 ]
声波的形成与传播.jpg
(2008-07-28 13:28:14, Size: 36.3 KB, Downloads: 2)
slijuns (2008-7-28 14:17:39)
水波的形成与传播.jpg
(2008-07-28 14:17:39, Size: 56.7 KB, Downloads: 6)
花落无痕1 (2008-7-28 15:15:11)
轻微的水波.jpg
(2008-07-28 15:15:11, Size: 66 KB, Downloads: 4)
busy99 (2008-7-28 21:15:29)
声波的形成与传播.jpg
(2008-07-28 21:15:29, Size: 52.6 KB, Downloads: 2)
塞北高原 (2008-7-29 12:05:14)
声波.jpg
(2008-07-29 12:05:14, Size: 117 KB, Downloads: 0)
释义多 (2008-7-29 13:33:36)
(2008-07-29 13:33:36, Size: 39.6 KB, Downloads: 0)
声波的形成与传播.jpg