“polarity epoch”的概念、定义、翻译、参考文献-科学参考

单词	polarity epoch
释义	polarity epoch [pǝ`lar·ǝd·ē ´ep·ǝk] ^GEOPHYSICS A period of time during which the earth's magnetic field was predominantly of a single polarity.
随便看	dry abrasive cutting dry acid dry adiabat dry-adiabatic lapse rate dry adiabatic process dry air dry ashing dry assay dry-back boiler dry battery dry bed dry blast cleaning dry-bone ore dry box dry-box process dry-bulb temperature dry-bulb thermometer dry cargo dry-cargo ship dry cell dry-cell cap light dry-charged battery dry-chemical fire extinguisher dry circuit dry-cleaned coal

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