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第一个 | |
gen. | first |
地表 | |
agric. | earth's surface |
bridg.constr. | ground surface; surface of earth; earth surface |
dril. | surface |
eng.geol. | zero depth |
oil | surface; terrene |
基准面 | |
UN geol. | horizontal datum |
时间 | |
environ. | time |
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first |
第一个 : 68 phrases in 22 subjects |