常用对数

用常用对数函数计算罗子山水库大坝漏测沉陷量

Calculation of sinking displacement missing in measuring with common logarithm function

在数值计算中，几乎只使用常用对数。

The common system is used in numerical work almost exclusively .

声音强度对数单位；等于音强或功率比值的常用对数乘以。

A logarithmic unit of sound intensity ; 10 times the logarithm of the ratio of the sound intensity to some reference intensity .

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。

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 .

将回弹值的常用对数和碳化深度值作为模型的输入，钻芯值的常用对数作为模型的输出。

The common logarithms of rebound values and carbonation depth values are chosen as the inputs of the model . The common logarithms of drill values are chosen as the outputs of the model .

根据回弹值与钻芯值之间趋于幂函数关系的专家经验，将回弹值和钻芯值分别取常用对数作为模型的输入和输出，以提高建模精度。

According to the expert experience of the relationship between the drill and the rebound values tended to the power function , common logarithms of the drill and the rebound values are acted as inputs and outputs of the model to improve the modeling accuracy .

通过理论和实例分析，将非线性最小二乘（NLS）法与常用的对数线性化最小二乘（LLLS）法进行比较。

With the theoretical and practical data analysis , it compares the nonlinear least square method ( NLS ) with the logarithmic linearization least square method ( LLLS ) .

首先详细分析了战斗机空战效能评估中常用的对数法模型，指出了模型中存在的问题；

The logarithm model in fighter plane air combat effectiveness assessment is analyzed firstly , and its deficiencies are put forward .

本文根据常用的指数、对数流速分布公式，从理论上分析了在不同的流速分布条件下，现行常用的几种垂线平均流速近似计算公式的误差。

In accordance with commonly adopted index and logarithmic formula of velocity distribution analyzes the theoretical errors of several current approximate formula for computing vertical mean velocity on the condition of different velocity distribution .