demonstrations:3_oscillations_and_waves:sound_waves:sound_tubes:start
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- Date:
- 2015/05/07 13:24
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- rsz_20150507_132420.jpg
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- ASCII 7 4xV4xV4xV4 `
1 è ÿÿ¯i ýý C A L JHFJ02 Cur.JHFJ02CML 018001001509002901090E5C010D011601160967ï 71 ë&