常用

After confluence, there is no clear margin between cells and only nuclear apophysis could be observed. Cell monolayer was smooth like quiet lake surface.

自制的胚胎冷冻液含有三种不同的冷冻保护剂(包括渗透性和非渗透性保护剂)，冷冻胚胎解冻后可用率在95％左右，比常用的DMSO冷冻液更适宜于这三种细胞的冷冻保存。

Most commonly, you will probably use the append and delete commands.

最常用的，你会使用append 和 delete命令。

Other examples of routable protocols do net protocols include IPX/SPX and AppleTalk.

本课程的重点是最常用的路由协议，这是互联网协议。

They were asked to rate them on a number of factors including competence, attractiveness and approachability on a scale of one to seven, from 'not at all' to 'very much'.

他们被要求给这些人按照能力，吸引力和亲和力等方面从一般到非常用1-7打分

The government has approved an appropriation of one billion yuan to those who are suffering earthquake.

这里的appropriation就是拨款的意思，这样我们就可以把这个词的另外一个常用意思也记住了。

Then an approximate calculation method for mission reliability and mean time between failure is presented. Finally, the result based on actual data is shown.

首先推导出可靠性参数在单调约束条件下的通用分布函数；然后给出常用指标任务可靠度和MTBF的一种近似计算方法；最后给出一例实际数据的计算结果。

Through numerical calculation and comparison with the complete formula,the accuracy of the approximate formula for calculation of reflection coefficient often used in AVA method for gas hydrate is discussed.

通过与完整公式的对比，对AVA常用的反射系数近似计算式的精度进行了讨论，同时分析了地震波速度、泊松比、密度等参数对于BSR反射系数的不同贡献。

With the advancement of science and technology, some new theories and new ways emerged gradually, some of them merged with specific theoretical tools, this specific theoretical tools include mathematical morphology, fuzzy techniques, neural networks, wavelet and so on. Secondly, in this paper, it described and analyzed the segmentation method based on the edge in the domain of image segmentation in detail. It did experiments on several edge detection operators using MATLAB, it summarized the advantage and the shortcoming of traditional edge detection operators, and the operating environment. On the basis of the experimental analysis, it implemented an edge location more precise, more efficient operating speed edge extraction method——Template Vector. In this method, it optimized differential approximate calculation of first differential operators the paper mentioned. After experimented on this edge extraction method, contracted with the traditional methods, the edge outline is extracted more accurately and more exquisitely, furthermore, it retained the object outline furthest, and achieved more satisfied edge extraction result.

其次，对图像分割领域中常用的基于边缘的分割方法进行了详细的研究与分析，对各种边缘检测算子进行了MATLAB环境下的实验，分析总结了各种传统边缘检测算子的优缺点和适应环境，并针对传统边缘检测算子在处理显微图像时的缺陷，在实验分析的基础上研究并实现了一种边缘定位更加精确、运算速度更加快捷的边缘提取方法——模板向量算法，在该算法中，对文章提到的一阶微分算子中微分的近似计算作进一步优化，经过对该边缘提取方法进行实验，其结果与传统方法相比，轮廓提取更为精确细腻，且最大程度的保留了图像中物体(目标个体或者明显噪声点)的轮廓，得到了比较理想的边缘提取效果。

Koopmans theorem is an approximation in molecular orbital theory , such as density functional theory , or Hartree-Fock theory, in which the first ionization energy of a molecule is equal to the energy of the highest occupied molecular orbital, and the electron affinity is the negative of the energy of the lowest unoccupied, i.e.

如同密度泛函理论或者Hartree－Fock理论，分子轨道理论中常用到的Koopmans 定理也是一种近似。

Neural networks is viewed as a universal approximator for nonlinear functions, but there are some fatal bugs with it, so it is necessary to find another method more right for neutralization process.

神经网络是目前中和过程非线性系统建模中常用的一种建模方法，但本身具有一些难以克服的缺陷降低了它的发展和应用效果，因此寻求更适于中和过程非线性系统建立模型的理论及方法是十分必要的。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。