类

With the methods of systematic and random sampling, more than 2000 specimens were collected in 7 kinds of habitat, belonging to 3 superfamilies, 11 families, 30 genera and 48 species. Of the collected specimens, grasshopper has the most species accounting for 62.5% of the total species.

采用系统取样和随机取样相结合的方法调查了7种生境中直翅目昆虫的种类和数量，共采集到昆虫48种，标本2000余号，其中蝗虫类30种，蚱类6种，螽斯类12种，隶属于3总科，11科，30属。

In implementing the tear-off interface, you actually need to implement it in a separate C++ class, and instantiate this class separately from the main object class.

在tear-off 接口的实现中，你实际上需要在一个单独的C++类中实现它，从主对象类中单独实例化这个类。

the teacher according to the student intelligence, the foundation and the study manner and so on, divides into the student three: a kind of student; b kind of student; c kind of student.

教师根据学生智力、基础和学习态度等，将学生分成三层：a类学生；b类学生；c类学生。

By tracing the antifungal and antibacterial activities of the volatile oils, it is found that the major active site in fiuit oil of Litsea mollis is aldehydic fraction such as citral, the major active site in oil of Thymus quinquecostatus is phenolic fraction such as thymol and the major active site in ginger oil is high boiling-point terpenic constituents such as β-caryophyllene, eudesm-4 (14)-en-11-ol, et al.

通过抗菌活生追踪发现，毛叶木姜子果油的主要活性部位是醛类成分，如柠檬醛；地椒油的主要活性部位为酚类成分，如百里香酚；姜油的主要活性部位为"高沸点萜类组分"，如β-丁香烯、4（14）-桉叶油烯醇-11等。

The main symptoms of tobacco virus diseases show mosaic, necrosis e, and malformation.

这些病毒在烟草上引起的症状主要有花叶类、坏死类和畸型类三大类。

The main aim is to compare topological index with quantum descriptors in the process of prediction of PCBs properties. At the same time, generalized correlation coefficient was attained to describe the diversity characters of two kinds of descriptors.

通过计算拓扑指数与量子化学参数的广义相关系数，比较了两类参数之间的差异性，同时通过对多氯联苯系列的几类重要的物理化学性质的预测，比较了两类结构参数在QSAR研究中的不同作用。

The results showed that the phenolics in cranberry would reduced. The free quercetin showed the best stability. And the flavonoids and proanthocyanidins were the second. The total phenolics showed the worst stability.

结果显示，蔓越莓中的酚类化合物含量会随储存时间而下降，其中以游离态quercetin之安定性最佳，总类黄酮及前花青素则其次，在总酚类化合物之安定性最差。

Furthermore, the structure of drift trammel net, set longline of baited hooks and jig and their fishing methods were described.(2)The fishing gears in Hejiang section were divided into drift trammel net, set longline and jig according to the fishery status in Hejiang section."Number of fishing boat day" was selected as the unit of fishing effort.

2根据合江江段的渔业现状，将该江段的渔具分为三层流刺网、饵钓、滚钩和其它偶见渔具四类，以"船·天"作为捕捞努力量的单位，用单位捕捞努力量渔获量乘以年捕捞努力量分别得到这四类渔具的年渔获量，并将这四类渔具的年渔获量相加估算出合江江段1999-2002年的渔获量分别为104563.464kg、65564.231kg、123684.966kg和107285.272kg。

Therefore, this paper fuzzy clustering method, first of all to highlight the dangers of all kinds of mining coal seams of each index measured data as samples to establish fuzzy similar matrix, find the transitive closure, re-use to do clustering, plot dendrogram.

所以本文利用模糊聚类方法，首先把矿区内各种突出危险性煤层的各指标的实测数据作为样本，建立模糊相似矩阵，求出传递闭包，再利用做聚类，画出聚类图。

of transitive closure based on equivalence relation, method of maximum fuzzy spanning tree based on fuzzy graph, and algorithm Fuzzy C-Means based on partition are more deeply investigated. Respectively, this thesis proposes an algorithm for document fuzzy clustering based on methed of transitive closure and an algorithm for document fuzzy clustering based on methed of maximum fuzzy spanning tree. Moreover, FCM is particularly studied from data standardization method, metrics method, and selection method of initial clustering prototype.

较深入地讨论了基于等价关系的传递闭包法、基于模糊图论的最大树法以及基于划分的模糊C-均值算法，分别提出了基于传递闭包法的文本模糊聚类方法ATCFC和基于最大树法的文本模糊聚类方法ATCMT；重点从改变规格化方式、改变度量方式、改变初始聚类原型选择方式三方面对FCM算法进行研究。

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。