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| harmonic motion | |||
| simple harmonic motion | |||
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| harmonic motion | |||
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| harmonic motion | |||
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谐运动 : 29 phrases in 11 subjects |
| Agriculture | 1 |
| Aviation | 1 |
| Bridge construction | 3 |
| Chemistry | 3 |
| Electronics | 1 |
| General | 1 |
| Latin | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Technology | 15 |
| Wind Energy | 1 |
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