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bootleg; rock pile; stone pillar | |||
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monument | |||
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monument |
石 桩 : 65 phrases in 9 subjects |
Architecture | 2 |
Bridge construction | 9 |
Earth sciences | 2 |
Engineering geology | 14 |
Hydroelectric power stations | 5 |
Hydrology | 2 |
Oil / petroleum | 1 |
Rail transport | 3 |
Technology | 27 |