“geologic age”的概念、定义、翻译、参考文献-科学参考

单词	geologic age
释义	geologic age [¦jē·ǝ¦läj·ik `āj] ^GEOLOGY 1. Any great time period in the earth's history marked by special phases of physical conditions or organic development. 2. A formal geologic unit of time that corresponds to a stage. 3. An informal geologic time unit that corresponds to any stratigraphic unit.
随便看	Varley loop test var measurement varmeter specific propellant consumption specific reluctance specific repetition rate specific resistance specific retention specific retention volume specific rotation specific routine specific speed specific surface specific susceptibility specific thrust specific viscosity specific volume specific-volume anomaly specific weight specific yield specimen speck speckle speckle interferometry specs

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