常用 in common use 常用词语 everyday expressions; commonly used words; 常用药材 medicinal herbs most in use; 砾石常用来筑路。 gravel is much used for road-making. “queer” 这个词常用作 “mad” 的委婉语。“queer” is the word often used euphemistically for “mad”.; 常用词 everyday words; often-used words; common words; 常用电压 common voltage; 常用对数 common [ordinary] logarithm; denary logarithm; brigg's logarithm; 常用卡片 active card; 常用名词表 major terms; 常用实用单位 usual practical units; 常用示波器 macrooscillograph; 常用箱 service tank
The common system is used in numerical work almost exclusively . 在数值计算中,几乎只使用常用对数。
To find the common log of a number, we first write it in scientific notation with one figure to the left of the decimal point . 为了求一个数的常用对数,首先按照科学计数法把它写作小数点左面具有一位的数。
Thereafter , the rfq - pcr method for the detection and enumeration of s . costatum cells is established with primer6 ( f / r ) and taqman6 . the regression curve for enumeration is delineated according to the development of the fluorescent densities in the rfq - pcr with the increasing number of s . costatum cells . the regression equation is y = - 3 . 3427x + 43 . 443 , in which x indicates the log10 of cell number , and y indicates the ct values , with r2 of 0 . 9788 以rfq一pcr中实际细胞数的常用对数值为横座标,以测得的ct值为纵座标,绘制出了定量检测的标准曲线,该曲线的回归方程为: y =一3 . 3427x + 43 . 443 ,其相关系数是: rz二0 . 9788 , ct值的标准估计误差为sy ’ x二0 . 6741 。