“Lower Cambrian”的概念、定义、翻译、参考文献-科学参考

单词	Lower Cambrian
释义	Lower Cambrian [`lō·ǝr `kam·brē·ǝn] ^GEOLOGY The earliest epoch of the Cambrian period of geologic time, ending about 540,000,000 years ago.
随便看	line displacement line dot matrix line drilling line driver line drop line-drop compensator line-drop signal line editor line engraving line equalizer line etching line facility line fault line feed line fill line filter line filter balance line finder line-finder shelf line-finder switch line flux line-formula method line frequency line-frequency blanking pulse line functions

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