“Middle Cambrian”的概念、定义、翻译、参考文献-科学参考

单词	Middle Cambrian
释义	Middle Cambrian [`mid·ǝl `kam·brē·ǝn] ^GEOLOGY The geologic epoch occurring between Upper and Lower Cambrian, beginning approximately 540,000,000 years ago.
随便看	radio-meteorograph radio meteorology radiometer radiometer effect radiometer-type receiver radiometric age radiometric analysis radiometric dating radiometric magnitude radiometric titration radiometry radiomicrometer radiomimetic activity radiomimetic substances radio mirage radiomutation radio navigation radio nebula radionecrosis radio net radio noise radio-noise field strength radionuclide radionuclide content radio-paging system

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