positive exponent是什么意思

用法例句

Concerning the stipulation and statement for empirical formula and revised index in point loading strength test there are still some uncertainties in related specifications and manuals.

关于点荷载强度试验的经验公式及其修正指数的规定和论述 ,在相关的规范和手册中还有一些有待明确的方面 ,因此在岩土工程应用中存在着一定的局限性。

In this study, a gear fault diagnosis method is investigated based on wavelet analysis and modified exponential distribution (MED) technique.

提出了基于小波分析和修正指数分布(modifiedexponentialdistribution,MED)的齿轮故障诊断方法,该方法采用小波包将齿轮振动信号分解为若干个频率段,然后选择合适的频率段进行小波包重构,对重构后的信号进行MED分析,得到齿轮振动信号的小波包时-频分布,进而从中提取齿轮振动信号故障的故障特征。

The diameter distributions were simulated by the modified exponential distribution function for describing the stand structure, based on inventory data of broad-leaf forest in Changbai Mountain.

以长白山阔叶林三类清查资料为依据,采用修正指数分布式拟合并预测林分的直径分布。

Based on analyzing the molecular topological theory,the novel atomic structure parameters βi and χi were defined,the former setting up the hydrogen line average index mH and the latter setting up the hydrogen line rectify index mHJ.

根据核磁共振波谱原理和原子所处的化学环境,定义了原子i的特征值δi,并对它进行了修正,在分子拓扑理论基础上,根据修正后得到的原子结构参数βi和χi,由βi建构氢谱均分指数mH,由χi建构氢谱校正指数mHJ,利用多元回归方法构建了对苯砜基环烷酸酯类化合物的高效液相色谱容量因子(lgKw)和急性毒性(lgEC50、lgLC50)进行估算的定量结构-保留/活性相关关系,得到了多元回归方程,估算的平均误差分别为0。