“邮政史”的概念、定义、翻译、参考文献-科学参考

单词	邮政史
释义	邮政史 Encyclopedia 工学〔交通史〕释 postal history邮政史邮政发展的历史。邮政是依赖实物传输网进行书面通信和快速送达小件物品的系统。“邮”指通信方式和组织，“政”指由国家政权进行统治。数千年来，绝大多数邮政系统为政府运行。至今，邮政大力发展，已经具有通政通民通商的特征，也是国民经济运行不可或缺的行业。
随便看	small-angle scattering small angle strain small angle X-ray scattering small angle Xray scattering small-angle X-ray scattering small-angle X-ray scattering, SAX small angle X-ray scattering (SAXS) small animal nuclear medical imaging small animals living imaging small aperture small area analysis by X-ray photoelectron spectroscopy small area analysis by Xray photoelectron spectroscopy small area estimation small artery small Asian mongoose Small Astronomical Satellite Small Astronomical Satellites 3 small branded swift small cancellation group small canonical ensemble small category small celestial body attachment small celestial body reorientation small cell lung cancer small centipeda

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