radioactivity standard信息详情
放射性标准;活度标准
standard───n.(Standard)人名;(英)斯坦达德;(德)施坦达德;adj.标准的;合规格的;公认为优秀的;n.标准;水准;旗;度量衡标准
current standard───电流标准;现行标准
res standard───res标准
standard deviation───[物]标准偏差;n.标准偏差
standard practice───(企业工艺过程的)通常练习
chancery standard───衡平法院标准
standard error───[统计]标准误差
standard mode───[计]标准模式;n.标准模式
standard procedure───标准程序;标准流程;标准程序,标准过程
checked with the reference standard material for environment radioactivity provided by NBS, USA.───用NBS提供的环境放射性标准参考物质进行了检验。
Three samples consisted of standard or quasi-standard substances with known specific activities of some nuclides while the radioactivity of the other sample was unknown.───三种样品是由一些具有已知核素比活度的标准物质或准标准物质构成,而另一种是活度未知的盲样。
The unwelcome discovery prompted Naoto Kan, the prime minister, to issue a new safety standard for levels of radioactivity in marine products.───这个不受欢迎的发现促使首相菅直人发布了新的关于海产品放射性水平安全的标准。
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