geomagnetic field reversal造句

例句与造句

1. One geomagnetic field reversal occurred during the Steens Basalt eruptions at approximately 16.7 Ma, as dated using 40 Ar / 39 Ar ages and the geomagnetic polarity timescale.
2. It's difficult to find geomagnetic field reversal in a sentence. 用geomagnetic field reversal造句挺难的