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美国 地质调查局 | |
gen. | United States Geological Survey; United States Geological Survey |
美国地质调查局 | |
avia. | US Geological Survey |
oil | United States Geological Survey |
地震工程 | |
bridg.constr. | earthquake engineering |
eng.geol. | earthquake engineering; seismic engineering; seismological engineering |
environ. | seismic engineering |
研究 | |
environ. | research |
分部 | |
gen. | branch |
美国地质调查局 : 12 phrases in 5 subjects |
Earth sciences | 6 |
Geology | 1 |
Geophysics | 2 |
Navigation | 1 |
Technology | 2 |