围绕

Teaching,the main problems are that teaching objectives are not clear and teaching contents are out of date.

高职院校体育教学的主要问题是教学目标不明确，教学内容不新颖等，其改革应围绕改善体育教学条件，改革教法，完善考核方法等方面进行。

Visible'.'' through a haze or thin cloud, especially such a ring around the moon or sun, caused by diffraction of light from suspended matter in the intervening medium.

微弱'。''颜色的发光的环，尤指围绕月亮或太阳的这种环，是由于悬浮物在插入媒介中的衍射造成的

But the talk in the clubhouse centered more on Kuo's home run.

但在球团所谈的都围绕在郭的全垒打上。

She sewed together a few pieces around a coat hanger for the tail and even used the eyes from the stuffed animal.

她缝在一起几块围绕一个衣架的尾巴，甚至用眼睛的填充动物。

As this is accomplished, the region will have a cobalt blue shimmer surrounding it denoting cellular health.

当这被完成，部位将有深蓝微光围绕着它，表示细胞疗愈。

Grouping.Grouping is acharacteristic of dermatitis herpetiformis,herpes simplex,herpes zoster,and late syphilitic eruptions.Small lesions arranged around alarge one are said to be in acorymbose arrangement.Concentric annular lesions are typical of borderline leprosy and erythema multiforme.These are sometimes said to be in acockade pattern,like the tricolor cockade hats worn by French revolutionists.Flea and other arthropod bites are usually grouped and linear(breakfast-lunch-and-dinner sign).Grouped lesions of various sizes may be termed agminated.

群集群集是疱疹样皮炎、单纯疱疹、带状疱疹和梅毒疹的特点小的皮损围绕大的皮损排列称为伞状排列同心圆形皮损是中间界线类麻风和多形红斑的典型皮损这种皮损有时被描述为帽章的形式，就象法国革命者所戴三色帽章跳蚤和其他节肢动物的咬痕常呈群集或线性分布各种大小的皮损聚集在一起术语称为"簇集"

There are many coconut palm trees along the streets and beaches in Miami. They are very pretty. But they are also dangerous!

在迈阿密，许许多多的椰子树一直沿着街道和海滩围绕着，非常得漂亮，但同时它们也很危险！

Based on projective geometry,the research works about 3D invariances extraction and application have been done in this thesis as following:(1) The basic theories and concepts in projective geometry are systematically summarized. It includes:the camera models of perspective imaging,projective collineation,cross ratio,a simple compare about invariance among some geometry transformations,fundamental matrix,epipolar and epipolar line in epipolar geometry,and so on.

基于射影几何理论，论文围绕3D不变特征的提取和应用进行了如下的研究工作：(1)系统总结了射影几何中的若干基础概念，包括：透视成像的相机模型、射影对应、交比不变量、基于不同几何变换下的不变量的简单对比、对极几何中的基础矩阵、对极点、对极线等。

Based on projective geometry, the research works about 3D invariance's extractionand application have been done in this thesis as following:(1) The basic theories andconcepts in projective geometry are systematically summarized. It includes: the cameramodels of perspective imaging, projective collineation, cross ratio, a simple compare aboutinvariance among some geometry transformations, fundamental matrix, epipolarand epipolar line in epipolar geometry, and so on.

基于射影几何理论，论文围绕3D不变特征的提取和应用进行了如下的研究工作：(1)系统总结了射影几何中的若干基础概念，包括：透视成像的相机模型、射影对应、交比不变量、基于不同几何变换下的不变量的简单对比、对极几何中的基础矩阵、对极点、对极线等。

This article aims to summarize Shanxis experience of using collotype facsimiles to preserve and display ancient wall paintings, as well as provide some food for thought for further practice and improvements.

与会的专家学者围绕山西古代壁画在全国的地位、壁画的学术价值、壁画展览的现实意义、文物保护与利用的关系，以及怎样宣传开发山西的文化资源和进行国际合作、交流，促进经济发展等问题进行了热烈的讨论。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。