类

This paper proposes a cluster analysis approach based on geometric probability, which determines the classification number directly according to the distributive characteristics of pixels in the spectral space by utilizing geometric probability and gradually generates the hierarchical classification system beginning at the top level.

本文提出基于几何概率的聚类分析方法，该方法运用几何概率直接根据像元在灰度空间中的分布特征决定分类数，按照先分大类、后分小类、逐层细分的顺序确定分类方案。

The study has shown:(1) With increasing sediment depth and the woody giblets, the total organic carbon, the extraction of benzene , the total humic acids and the unhydrolyte are enhanced, while the hydrolyte is decreasing.(2) According to the GC-MS analysis, n-alkane,n-alkan-2-ones and n-alkanones are composed mainly of long-chains,such a result is thought to be characteristic of a herbaceous input from 2300a.B.P. n-alkanones exist in the samples may be considered as the evidence of microorganisms activity.(3) It is showed that the lipids is more sensitive to the climate change than the floristic. The proxy of the pollen spore of the peat stratum is different from the normal environment proxy. It is one of the main reasons that the sensitivity difference of the bog vegetation reacting to the climate isn't accordant with the log of the fat molecule fossil and biology fossil.(4) The transformation of the peat organic carbon is under the influence of temperature,acidity,organic material constituting, etc, and it showed the up-trend with the depth. In the short-term scale, the conversion of the peat organic carbon is effected by seasonal water,regional climate and vegetations; while in the long-term scale, it is controlled mainly by the climate.(5) According to the comparing the orderliness of organic compound,vegetation giblets with the depth to the characteristics of the peat molecule fossil with the section, in the development of this peatmire, 1500a B.P（210cm）is regard as the borderline of the late Holocene, the keynote of the front period is warm with several cold fluctuations, and the trend of the back period is dry and cold although there were several fluctuations.

研究表明：（1）随深度的增高及植物残体中木本残体的增多，总有机碳、苯萃取物、总腐植酸、不被水解物含量逐渐增高，而易水解物含量减少；（2）GC- MS分析显示，正构烷烃，直链烷基2-酮和正烷醇均以长链组分为主，揭示了该泥炭柱剖面2347a.B.P的母源输入以草本植物为主；甲基酮类和短链正烷醇的存在是微生物活性很大的生物证据；（3）通过有机分子标志物与孢粉、植物残体等指标的对比研究表明：脂类化合物对气候变化的反映要比植物种灵敏得多，不同沼泽植物对气候变化的敏感性的差异是脂类分子化石记录与生物大化石结果很难一致的主要原因之一；（4）泥炭有机碳的转化受到温度、酸度、有机物质组成等很多因素的影响，短时间尺度，泥炭有机碳的转化受季节性降水、地方气候和植被等因素的影响；长时间尺度，泥炭地有机碳的转化，受气候条件控制；（5）总结泥炭分子化石特征、泥炭有机质各组分含量及植物残体组成随深度的变异规律，分析结果显示该泥炭地层形成过程中，1500a B.P（210cm）可作为划分前后晚全新世的界线，前期的基调是气候偏暖，但又有几次偏干冷气候的反复，后期气候以干冷为主，其间虽有几次上升波动，但整体趋势不变。

Dongying wild soybean seedlings had the highest activities of antioxidant enzymes and higher Na+ transport efficiency under the short-term NaCl stress, which helped to alleviate the damage of the short-term NaCl stress.(4) The shape of chloroplasts was changed to circular from oval, and the granum stacks twisted under the short-term NaCl stress in the Shandong cultivar soybean leaves whereas, only twisted granum stacks were observed in the Dongbei wild soybean leaves.

4NaCl短期胁迫后山东栽培大豆幼苗叶片的叶绿体形状发生变化，由椭圆形变成了圆形，类囊体结构部分膨胀扭曲；东北野生大豆幼苗叶片的叶绿体形状没有多大变化，但是类囊体结构部分膨胀扭曲；而东营野生大豆幼苗叶片的叶绿体形状和类囊体结构都几乎没有变化。

The integration of graphic and nongraphic data is achieved by using classes of graphics,database and information management.

并由图形类、数据库类和信息类实现了CAD图形与非图形数据的集成。

When using this method to isolate thrombin-like enzyme from crude venom of Agkistrodon halys pallas, the total protein yield and total activity yield of thrombin-like enzyme were about 0.3% and 64% respectively, and specific activity was more than 2000 U/mg.

从江浙粗蛇毒中提取类凝血酶时，类凝血酶的总质量收率约为0.3%，总活性收率约为64%，比活可达2000 U/mg。三步柱色谱；类凝血酶；蛇毒；江浙蝮蛇；分离纯化

96H LC 0,96 h LC 50 ,and 96 h LC 100 of twelve chemicals of phenol ,alkyl benzene and nitrobenzene,and three water samples to sword fish(\%Xiphophorus helleri)\% and rare minnow(\%Gobiocypris rarus\%) were tested.3. The phenol ic waste water was purified through the absorption of polyvingl pyridine.

介绍了含酚废水与聚乙烯基吡啶类树脂接触，酚类会吸附在树脂上，使废水得到净化，然后将吸附了酚类的树脂加热处理回收酚，与此同时，对树脂也进行了再生处理，再生后的树脂可循环使

From the RAPD analysis data, the band similarity rates and average band similarity rates between two individuals in the sampling population, average band allele frequencies, average band heterozygosis degree, and the Shannon genetic diversity index were calculated to perform the cluster analysis of heterozygosis arithmetic averages and construct the phylogenetic tree.

根据RAPD结果分别计算了两两个体间的带纹相似率、平均带纹相似率、带纹的平均等位基因频率和平均带纹杂合度及遗传多样性指数，作亲缘关系的类平均聚类并绘制了相关关系聚类图。

Industry experts say that at least 90 percent of all online games in China have some form of violence, whether they involve homicidal kung-fu masters, sword-wielding hobbits or monsters with a taste for human flesh.

专家称，中国90％的网游有不同形势的暴力，无论是传统的功夫高手类，挥舞剑矛的精灵类还是吃人肉的妖怪类。

Some sufficient condition to guarantee the existence of global invariant manifold s consisting zero homotopic closed orbits is gived.

当在每个不变柱面上有奇点时证明了这类系统局部极限环的存在性；同时给出了这类系统存在由第一类闭轨组成的全局不变流形的条

An insect of the order Hymenoptera,including the bees, wasp s,and ants,often living in complex social groups and characteristically having two pairs of membranous wings.

膜翅类昆虫膜翅类的任何一种昆虫，包括蜜蜂、马蜂、蚂蚁，经常有复杂的社会群体有两对膜翅是这类动物的特点

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。