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Firstly, we used the Raman scattering method which can calibrate in real time to measure the O2 (a1 Δ) yield of SOG for the first time in China. The measurement relative error is less than 8%. Based on the data from the experiments, we report the results that the diluent category and ratios influence the O2 (a1 Δ) yield. The relationship of P-τ values and the O2 (a1 Δ) yield of this SOG were given. The effects of distance and bypass of gas transportation on the O2 (a1 Δ) yield are investigated. Secondly, the chlorine utilization was measured by using Raman spectroscopy simultaneously when the O2 (a1 Δ) yield was measured. This method originated with us. The result about the chlorine utilization is coincident with other theoretic and experimental conclusions. The relationship given in this paper between gas stay time in SOG and chlorine utilization offers reference to improve the reaction efficiency and chemical efficiency of COIL. Finally, the partial water vapor pressure at the exit of SOG was measured by absorption spectroscopy. The water vapor fraction and partial pressure have trends changed with the generator total pressure, the diluentratios, and the BHP temperature. These experimental results are very important to improve experimental conditions of SOG, reduce the water vapor fraction, and enhance the output power of COIL.

由侧得的数据得到了加入稀释气体、稀释气体种类以及稀释比例对单重态氧产率的影响，给出了该发生器P一：值与仇产率的关系，还考察了传输距离对仇产率的影响；在国际上首创利用喇曼散射光谱法在侧量产率的同时进行了氯气利用率的检侧，侧试结果与其他理论及实验结果十分相近；给出了气体在发生器中的滞留时间与氯气利用率之间的关系，该结果为提高氧碘化学激光器的反应效率和化学效率提供了参考依据；另外采用了吸收光谱法对发生器出口处的水汽含量进行了测量、得到了水汽分压和百分含量随着发生器压力、稀释气体比例以及BHP温度等的变化情况，该实验结果对于改进发生器工作条件、减少水汽含量、提高氧碘化学激光器的出光功率具有十分重要的指导意义。

Which are used as an important basis of investment decision and risk controlling and management in later phases. But former studies made by many research institutions mainly focused on investment estimates of industrial projects and cost controlling of individual projects. It is looked as a weak aspect for the whole real estate industry that the accuracy of project investment estimates is too lower to meet the permissible error regulated by the government in feasibility research phrase. Overestimate is a very common phenomenon, which will undoubtedly be a barrier for smoothly increasing of real estate industry.

但是，长期以来，具体进行投资估算的主体是房地产开发企业和咨询公司，而银行等金融机构、风险投资机构和投资人、政府相关管理部门、行业协会在房地产市场逐渐规范，竞争越来越激烈的背景下，银行等金融机构、政府相关管理部门等也都需要在商业地产项目的前期阶段，特别是初步可行性研究阶段对项目的总投资估算有较为客观、真实的了解，以作为下一步投资决策、风险控制和管理的重要依据。

This paper analyzed the randomness of the relative position relation between the common vertical line of the two axes of a coupling and two centers of a coupling during installing machines,and the randomness of the position of the support plane on which a machine is installed.It pointed out the errors formed by the two randomness and illustrated the faults of the four parameters system which is used in describing the shaft alignment error of a coupling by abroad technician.

分析了机器安装过程中联轴器两轴线的公垂线与联轴器中心的相对位置关系的随机性及机器地脚支承面方位的随机性，指出了两种随机性所产生的误差，说明了国外工程界在描述联轴器对中误差时所用的4参数体系存在的不足。

Out to make a name for himself, Waldseemuller appended another Vespucci letter which, either by design or by a printer's error, credited Vespucci with having reached South American in 1497, one year before Columbus did.

为了扬名，瓦尔德西拗斯又附上了维斯普奇的另一封信，不知是故意为之还是印刷工的疏忽，维斯普奇到达南美洲的时间被写成了1497年，比哥伦布还要早一年。

First, a smooth curve is obtained from the data by curve fitting with the method of non-linear least squares fit. Then the tangent vector and the radius of curvature of each point on the curve can be calculated for the error evaluation. With the fitted curve, the focusing state of the aspheric lens can be obtained by the method of ray tracing.

主要过程为首先采用非线性最小二乘拟合的方法进行曲线拟合，并计算出曲线上各点的切矢量和曲率半径，分析它们的误差，最后对拟合后的曲线用光线追迹的方法得到非球面镜的聚焦情况。

This experimentation was to be guided not by random trial and error, however, but rather by scientific habits of mind.

这种实验并不是通过随机抽样调查或错误，而是靠科学的思维习惯。

An improved method for measurement of complex permittivity using six-port reflectometer is presented. Error caused by incomplete superposition between the measured plane and reference plane, which is often in the case of conventional measuring method, is eliminated with the developed novel algorithm by separating the two planes.

提出了六端口反射计测量介质材料复介电常数的一种改进方法，新的算法使测量面与参考面分离，消除了传统测量方法中测量面与参考面无法完全重合引入的误差。

Model structure is determined according to the principle of minimizing residual sum of squares, model parameters are estimated by optimum instrumental variable method and prediction error method and validation of the model is performed by examining the whiteness of model residuals.

采用最小二乘法估计制动器ARX模型的参数，以损失函数最小为优化准则，判断了制动器模型的阶次。运用最优辅助变量法和预报误差法，对制动器ARMAX模型的参数进行了估计。

In this paper,two nonlinear anisotropic diffusion filtering methods are presented and they are based on the multispectral anisotropic diffusion models proposed by Pope and Acton.We build a couple of new diffusion coefficients in partial derivative equation based on Tukey's biweight estimator error norm by recurring to the relationship between robust statistics and anisotropic diffusion incorporated with the nonlinear time-dependent cooling technique for gradient threshold.

在Pope和Acton提出的两个多光谱图像各向异性扩散滤波模型的基础上，通过各向异性扩散和稳健统计学的联系，建立了基于B iwe ight Estim ator误差模型的扩散系数，同时利用非线性退化技术对梯度阈值的改进，提出了两个基于各向异性扩散方程的非线性滤波方法。

The weight is determined by root-mean-square error method and the weight is modified by exponential smoothing method.

利用最小二乘法对该预测进行了改进，进一步扩大和提高了模型的应用范围和实用性。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷