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| chasing dial; dial thread indicator | |||
| 牙表: 20 phrases in 9 subjects |
| Architecture | 7 |
| Dentistry | 4 |
| Drilling | 1 |
| Earth sciences | 1 |
| Mechanics | 1 |
| Name of organization | 1 |
| Nursing | 1 |
| Oil / petroleum | 1 |
| Technology | 3 |
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