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stratigraphical timescale; stratigraphical time-table | |||
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geological time scale | |||
geochronometric scale |
地质 年 表: 36 phrases in 9 subjects |
Agriculture | 3 |
Bridge construction | 1 |
Desert science | 1 |
Drilling | 3 |
Engineering geology | 1 |
Geology | 3 |
Oil / petroleum | 5 |
Space | 1 |
Technology | 18 |