“precambrian”的概念、定义、翻译、参考文献-科学参考

单词	precambrian
释义	precambrian Encyclopedia 理学前寒武纪释 precambrian前寒武纪地球形成之后，到寒武纪之前的地质时期。为一非正式地质年代术语，又称先寒武纪。 Physics precambrian前寒武纪[的]
随便看	sampling technique of discrete random variables sampling technique of random process sampling technique of random vectors sampling test sampling theorem sampling theory sampling unit sampling up-the-ramp sampling with arbitrary probability sampling with equal probabilities sampling with equal probability sampling with non equal probabilities sampling with non-equal probabilities sampling with nonequal probabilities sampling without replacement sampling with PPS sampling with probabilities proportional to size sampling with probability proportional to size sampling With replacement sampling with replacement sampling with unequal probabilities samploscope Sam Raimi Sam Ramsamy SAMs

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