类

According to abraded shafts in the use, this text analyzes abrasion cause of shafts.

针对轴类零件在使用过程中常会出现磨损的情况，对轴类零件的磨损及其原因进行了分析，介绍了近年来轴类零件修复技术的发展，包括喷涂技术、滚花技术、镀覆技术和堆焊技术，并总结了这些修复工艺的特点和应用情况。

Comparing with marine oils in the adjacent areas, all crude oils in Hade 4 oil field (except for HD401 well) have following peculiarity: very similar in the composition of light hydrocarbon fraction, and the distribution of of phytane-series isoprenoid alkanes, high concentration in steranes, terpanes and their aromatized compounds, as well as rearranged steranes; low concentration of gammacerane, 24-norcholestanes and 24-rearranged steranes, and low C〓 regular steranes C〓/(C〓+C〓+C〓＜20%; 3-methyl steranes and 27-norcholestane predominated, respectively; very low concentration of dinosterane and 4-methyl steroid.

分析表明，与相邻地区海相原油比较，除最南端的HD401井原油外，其它井区原油均具有下述特点：轻烃馏分组成十分接近、植烷系列类异戊烯烷烃分布较为一致、甾萜类和芳香甾萜类环状化合物浓度较高、重排甾烷丰度较高、伽马蜡烷含量低、规则甾烷组成中C〓丰度低C〓/(C〓+C〓+C〓＜20％、甲基甾烷中以3-甲基甾烷为主、甲藻甾烷和4-甲基甾烷丰度极低、降胆甾烷中以27-降胆甾烷为主、24-降胆甾烷和24-重排降胆甾烷丰度低。

Department of computer, jiangxi institute of commerce, nanchang 330100, chinaabstract: clustering is a process that assorts things by their similarity,traditional clustering analysis assorts things strictly, therefore the border of the classification is very clearly.

聚类就是按照事物间的相似性进行区分和分类的过程，传统的聚类分析是一种硬划分，它把每个待辨识的对象严格地划分到某个类中，具有非此即彼的性质，因此这种分类的类别界限是分明的。

Finally making enterprises manage better.Because of insufficients in the traditional cluster method ,such as unusual number avulses of data, and kinds of level count difficult to define. The thesis has put forward a method of Restricted Minimum Variance Hierarchical Cluster. Its basic thoughts come from variance analysis .

针对数据中的异常数值，以及类水平数难以确定的问题本论文提出了一种带约束的最小离差系统聚类法(Restricted Minimum Variance Hierarchical Cluster，RMVHC)，其基本思想来自方差分析，即如果分类正确，则类内样品的离差平方和应较小，而不同类间样品的离差平方和应较大。

Indeed, it may well be that those whose work is their pleasure are those who most need the means of banishing it at intervals from their minds.

也可以这样说，理智的，勤劳的，有用的人可以分为两类：第一类是分清工作是工作，娱乐是娱乐的人；第二类人的工作和娱乐是一回事。

Sell all kinds of high middle and low snare drum, Yangko drum, drum, awe-inspiring drum book drum, percussions, bongos, tambourine, drums made to order special, drum class maintenance.

上百种鼓类批发、零售：各种高中低档军鼓，秧歌大鼓、腰鼓、威风锣鼓书鼓、堂鼓、手鼓、铃鼓、特殊鼓类定做、鼓类维修。

We had the opportunity to have a seasoned Slamball veteran coach choreographing the actual Slamball, so it went really smooth, the transition from basketball to Slamball.

我们有这样的机会在一整季中可以拥有一位经验丰富的另类篮球教练设计指导真正的另类篮球，因此从篮球转变到另类篮球进行的非常顺利。

Partition is a main kind of the non load-bearing internal walls, and is an important part of comparting most of the internal structures and layouts.

工业隔断墙属于室内非承重分隔墙中的一大类，国内权威单位也将隔断墙归为隔断大类下的固定隔断类。

In this study, we demonstrate that our new designed carrier can offer high conjugating efficiency for various carbohydrates to solve the low immunogenicity of carbohydrate in the generation of anti-carbohydrateantibody.

因此，可预期的，我们所设计的抗原载体应可提供一醣类相关疾病研究之良好平台，并解决因醣类低抗原性，而难以生产醣类抗体的研究困难。

The database system is the important constituting part of the computer system.

本系统的用户分为两类：教师类用户和管理员类用户。

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。