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| |||
| 程〔路径〕差 | |||
| 程差; 光程差 | |||
| 声程差 | |||
| 直达声与反射声的行程差 | |||
| 路径差 | |||
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path difference : 14 phrases in 6 subjects |
| Electronics | 3 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Rail transport | 2 |
| Space | 1 |
| Technology | 6 |
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