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单词
numeration system
释义
numeration system
Encyclopedia
理学
数学史
释
numeration system
记数法
记录或标志数目的方法,主要指数字符号的表现形态和记数工具的使用。人类最早记数靠堆积石块木棍或摆弄指趾,后来使用结绳和契刻。随着记载数目的增大出现了进位制。受各地自然环境和各种社会条件的影响,产生出不同的记数法。又称记数制。
Mathematics
numeration system
计数制
随便看
impurity absorptione
impurity atom
impurity average
impurity band
impurity band conduction
impurity band conduction detector
impurity defect
impurity defect; extrinsic defect
impurity diffusion
impurity diffusion technique
impurity effect
impurity ensemble
impurity in semiconductor
impurity inspection of crude drug
impurity in the wool fibers
impurity level
impurity mode
impurity photo conductance
impurity photo-conductance
impurity photoconduction
impurity resistivity
impurity scattering
impurity scattering for carrier
impurity segregation
impurity semiconductor
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