引入

Because the change of grating period caused by the asymmetrical rotation of two beams is limited to 5×10-4 nm at a tunability of the Bragg wavelength of ~100 nm, the tilt of grating caused by the rotation of the biprism can be ignorable.

因为在~100 nm范围内两光束的非对称旋转对光栅周期的改变是5×10-4 nm，双棱镜引入的光栅的闪耀可忽略。

When the biquadratic coupling is properly selected, the discrepancies between the previous theories and experiments can be efficiently eliminated.

结果还表明，当我们适当地引入了双二次项耦合后，其理论结果和实验结果的差异能被有效地消除。

Considering the factors such as randomness of natural lightning locus and the coexistence of primary and secondary leaders, it is necessary to lead in the concept of dynamic lightning protection shielding angle. It is suggested that the angular bisector of practical protective angle formed by ground wire or earth pin in UHVAC transmission line and conductor should be aligned with the direction of lightning leader as well as the ratio of vertical span to horizontal span and the impact of wind speed should be considered.

考虑自然闪电轨迹的随机性和雷电主先导与次先导并存现象等因素，有必要引入动态防雷保护角概念，建议特高压交流线路中地线对导线的实际保护角形成的角平分线应与雷电先导的来向一致，并应计及垂直档距和水平档距的比值和风速的影响。

This paper extends the concept of multi level bitmap catalogue proposed in paper 〔1〕,by introducing multi word bit operation into the algorithms related to the catalogue structure .

本文推广多级位示图的概念，并在其有关算法中引入多倍字位操作；分析分配算法的时间复杂度和位示图目录相对的空间管理开销；分析存储池容量和分配算法的空间？？

This paper is the first one to have introduced the Dynamic Bivariate Mixture Distribution Models and to have used it to make an empirical study on price-volume relationship in China's stock market.

文章首次引入动态二元混合分布模型，并利用该模型对中国股票市场的量价关系进行了实证研究。

In this paper, considering inter- scale dependency, we introduced a bivariate probability distribution model.

该文考虑到小波系数层间相关性，引入双变量概率分布模型。

To improve the performance of image-denoising methods, a locally adaptive denoising algorithm was presented. The new algorithm assumed the statistical dependence among wavelet coefficients. First, a bivariate probability distribution model was introduced to model the statistics of wavelet coefficients, and corresponding nonlinear threshold function was derived from the model using the Bayesian estimation theory.

由于图像小波系数存在很大的层间相关性，引入双变量概率分布模型，基于贝叶斯估计理论，得到了相应的非线性阈值函数；基于层内局域方差估计，利用该收缩函数得到一种局域自适应的图像去噪算法。

A sub-level of spam filtering system model based on the traditional black and white list filtering technology is established.

在传统的黑白名单过滤技术的基础上，引入了IP信誉评分机制，并结合基于规则的过滤技术和基于内容的贝叶斯过滤技术，从而建立了一个多层次的垃圾邮件过滤系统模型。

The result of analysis of seepage control will be better if we do not neglect blemish in important part .

本文通过随机数的引入，初步探讨了损伤的大小、个数及其分布的随机性。

More importantly, the performance of BLEU is significantly improved by integrating fuzzy matching.

更重要的是，通过引入模糊匹配，BLEU的性能得到显著的提高。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。