乘法

When given a requiting multiplication or division , the computer solves it by adding or subtracting .

当给计算机一道要求用乘法或除的题时，它能用加法或减法解出。

When given a problem requiting multiplication or division , the computer solves it by adding or subtracting .

当给计算机一道要求用乘法或除法求解的题时，它能用或解出。

When given a problem requiting multiplication or division , the computer solves it by adding or subtracting .

当给计算机一道要求用乘法或除法求解题时，它能用或减法解出。

If we still use OLS to form the model, the parameter estimation and the steadies of the model will be poor.

解决建模中的共线性问题，现有不少方法，其中偏最小二乘法是一种较为有效的方法。

These selected variables were used in the determination of total volatile alkaloids and total nitrogen in tobaccos by partial least squares method.

偏最小二乘法[3]和主成分回归[4]是NIR技术中常用的两种化学计量学方法，曾被认为对噪音信号不敏感，在对庞大的数据矩阵进行处理时不需要变量筛选，但大量的研究工作表明，有效的变量筛选可以改善模型的预测能力和减少模型的复杂程度[5～8]。

The traditional two-times excitation technique can be improved based on the proposed algorithm in which high accurate recognition of the primary frequency of excitation can be achieved.

研究发现，只有在信噪比较高时，才能用时域最小二乘法来识别油膜的线性动特性系数。

Used the finite element method computation pipe network resistance thus obtains the ballast water system the line pressure distributed situation. The paper also has carried on the computation to the ballast tank hydraulic loss and has provided the theory basis to the ballast pump optimized design. The overpressure to the ballast tank has been carried on the discussion. The paper also gets the function between the rated flow and the rated pressure of the pump on ships whose BW pipe net is uniform and line is different, which provides a new method for the selection of BW pump.

文章重点讨论了船舶压载水系统的水力计算，使用有限元法计算管网阻力从而得到压载水系统的管路压力分布情况；文章还对压载舱的水力损失进行计算，对压载水泵的优化设计提供了理论依据；文章还对压载水舱过压问题进行讨论；文章对压载水系统相同而航线不同的船舶，利用最小二乘法得到其压载水泵额定流量和额定压头之间的函数关系，为压载水泵的设计和选型提供了新的方法。

Its implementation processes include:①to perform wavelet transform and frequency decomposition and reconstruction to gain the seismic data with high quality;②to adopt least square method to approach and fit the local secondary curved face, and compute the fit coefficients of the secondary curved face, then use these coefficients to gridding mapping bed plane to compute the average curvature and Gauss curvature, then, obtain other curvatures through the various linear combinations of the two curvatures above;③to generalize the curvature of the bed layer to compute and reconstruct the curvature volume.

其实现过程为：①对地震资料进行小波变换、分频重构，获得高质量的地震资料；②采用最小二乘法一次逼近，对局部二次曲面进行拟合，求取二次曲面拟合系数，并利用这些系数对网格化成图层面计算平均曲率和高斯曲率，再从两个曲率的不同线性组合，获取其他曲率；③将层面曲率推广，计算和重构曲率数据体。

Works on the bending roll system of four-roll rolling mill, the workroll shape variation caused by the force of bending roll and the contact stress between rolls was researched with the FEM software ANSYS, the maximum deformation of the work roll was calculated, and the curve of the gap adopting the Least-Squares method was fitted, which set the base of the further calculation of load-gap shape.

以四辊轧机的弯辊系统为研究对象，利用有限元分析软件ANSYS研究弯辊力和辊间接触应力引起工作辊形状的变化，计算工作辊弯曲的最大变形量，并用最小二乘法对辊缝曲线进行拟合，为进一步计算有载辊缝形状提供可靠的理论依据。

The empirical part choose 100 listed companies in Shanghai Stock Exchange market as the samples, analyzing their annual report data of 2005,2006 and 2007, using least squares regression analysis. I chose seven items to reflect the character of corporate governance. They are shareholding ratio of the biggest holder, the proportion of outstanding shares, the design of the Audit Committee, the general manager and chairman of the settings, the scale of the Board, the proportion of independent directors, and the share of executives.

实证部分以上海证券交易所上市的100家中国上市公司为研究样本，采用这些上市公司2005、2006和2007年的年报数据，运用最小二乘法进行回归分析，解释变量分别是第一大股东持股比例，流通股比例，高管人员持股比例，总经理与董事长的设置情况，独立董事比例，董事会规模，是否设计审计委员会。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。