“the first historical activity”的概念、定义、翻译、参考文献-科学参考

单词	the first historical activity
释义	the first historical activity Encyclopedia 哲学第一个历史活动释 the first historical activity第一个历史活动马克思、恩格斯用来强调物质生活资料的生产与再生产的基础作用时所使用的概念。
随便看	frequency curve frequency cutoff frequency dependence selection frequency-dependent conductivity frequency deviation frequency diagram frequency dictionary frequency difference splitting technique frequency discriminator frequency dispersion frequency distribution frequency distribution curve frequency distribution table frequency diversity and combining frequency divider frequency dividing network frequency division duplex-long term evolution, FDD-LTE frequency division multiple access frequency division multiple access, FDMA frequency division multiplex communication frequency division multiplexing frequency division multiplexing, FDM frequency division multiplexing，FDM frequency domain frequency domain airborne electromagnetic method

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