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hardsite | |||
underground installation | |||
underground | |||
underground facility | |||
hard site; subterranean work; subterraneous works | |||
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hardsite | |||
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underground installation |
地下设施 : 16 phrases in 7 subjects |
Electronics | 2 |
Engineering geology | 2 |
Mining | 1 |
Oil / petroleum | 1 |
Space | 1 |
Technology | 8 |
Water resources | 1 |