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continuous interval survey in hole |
环测法 : 24 phrases in 12 subjects |
Architecture | 1 |
Construction | 1 |
Ecology | 1 |
Engineering geology | 1 |
Genetics | 2 |
Metallurgy | 1 |
Oil / petroleum | 1 |
Polymers | 1 |
Space | 1 |
Technology | 12 |
Telecommunications | 1 |
Textile industry | 1 |