排列5开奖结果

国际计量单位制的技术改革方向

发布时间:2019/08/13 点击量:

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  国际单位制(SI)是全球统一的计量单位制,是构成国际计量体系的柱石,现在的国际单位制中,有时间、长度、质量、电流、温度、光度和物质的量7个最底子的计量基准。特别是1875年第一次国际计量大会后,各国开端树立国际统一的、以经典物理学为基础、以什物为基准的国际单位制及准确的计量基准,为统一全国际的计量标准起了很好的作用。

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排列5开奖结果   “SHIERWU”QIJIAN,WOGUOZAIGUOJIDANWEIZHIGAIZAOZHONG,YIJINXINGXIANQIBUJU,TUPOLEYIXIEYAOHAIJISHU,BUFENCHENGGUOJINRULEGUOJIQIANGXIANXINGLIE,DANSHIBUFENCANSHUDECELIANGCHENGGUOYUGUOJIYILIUSHUIPINGRENGYOUJIAODAJULI:RUDEGUOZAIYOUGUANQIANKECONGTOUDINGYIDEAFUJIADELUOCHANGSHUCELIANGFANGMIANGUOJIQIANGXIAN;MEIGUOYANZHIDEXIAYIDAISHIJIANPINLVJIZHUNGUANGZHONGDEZHUNQUEDUYIDA50YINIANJINCHA1MIAO。WOGUOMEIYOUSHULIQIYILIANGZIWULIWEIJICHUDEXINYIDAIJILIANGJIBIAOZHUNSHEBEIHEWANHAODELIANGZHICHUANDITIXI。

  “十三五”期间,我国应捉住国际单位制改造的严峻时机,深入执行立异驱动展开战略,应对国际单位制(SI)底子单位从头定义的严峻改造,高准确地测定普朗克常数、玻尔兹曼常数和精细结构常数等,全力推动底子物理常数的精细测定,不断进步测量成果的准确度,在国际单位制改造中占据更大的权重,构建出以量子基准为中心的新一代计量基标准体系,在国际计量界建立中国的先进位置,进一步夯实国家质量技术基础,全面支撑我国立异驱动战略和质量强国战略。







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