“age ratio”的概念、定义、翻译、参考文献-科学参考

单词	age ratio
释义	age ratio [`āj ´rā·shō] ^GEOLOGY The ratio of the amount of daughter to parent isotope in a mineral being dated radiometrically.
随便看	power output tube power pack power package power plant power rating power ratio power reactor power rectifier power relay power resistor power saw power semiconductor power series power set power shovel power-shovel mining power slips power spectrum power station power steering power stroke power supply power supply circuit power-supply rejection ratio power switch

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