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| 平板测量 | |||
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| 平板仪测量 | |||
| 平板仪测量 | |||
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| 平板仪测量 | |||
| 平板仪测量 | |||
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| 干板仪测量 | |||
| plane table surveying: 11 phrases in 3 subjects |
| Geology | 1 |
| Hydroelectric power stations | 4 |
| Technology | 6 |
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