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sedimentary organic material | |||
sedimentary organic matter |
沉积 有机物 : 21 phrases in 10 subjects |
Agriculture | 1 |
Automobiles | 1 |
Desert science | 1 |
Earth sciences | 5 |
Electronics | 1 |
Engineering geology | 2 |
Oil / petroleum | 1 |
Space | 2 |
Technology | 5 |
Water resources | 2 |