存在度
- 网络presence
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本文提出了区系存在度,即某一科(属)在该地出现的的次级分类群与它的所有次级分类群的比值。
VFP ( Value of Floristic Presence ), that is , the ratio of the number of the secondary taxa occurring in this place to that in all the world , has been put forward .
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热带成分的属在本区占53.9%,但它们的区系存在度不大;
The tropical genera constitute 53.9 % , but their values of floristic presence ( VFP ) are relatively low ;
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存在度为奇(偶)数的正则图不是Hopf箭图;
There exists a regular graph with odd ( even ) degree not being a Hopf quiver .
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因为在实践中两者的张力不可能达到完全的平衡,因而二者的融合存在度的问题。
As total balance between the text and the translator is not possible , there are different degrees of fusion .
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究其原因,我认为有两个,首先,影响公司治理的因素太多,且大部分因素都存在度的问题。
Investigate its reasons , I think there are two . First of all , the influencing factors of corporate governance are too much , and most factors are matter of degree .
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分析结果表明,中国航空网络是一个小世界网络,度分布服从双段幂律分布,网络中存在度小但是介数大的节点。
The results show that the present network is a small-world network , and its degree distribution follows a double power law . There are nodes with small degree but high betweenness centrality .
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对其降解曲线的研究表明:C8~10直链、C14~15支链等APG的降解曲线存在降解度随时间下降的特殊现象;提出了APG一条可能的降解途径。
Degradation curves of APG showed some degradation extent decreased with time .
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针对目前GIS内装电能计量装置普遍存在准确度等级过低的问题,探讨出一套效果好、费用低廉的改造方法,该方法对非GIS电能计量装置存在的问题也同样具有改造效果。
Aiming at the ubiquitous problem of excessively low accuracy class of electric energy metering devices in gas insulated switchgear ( GIS ), effective and economical altering approaches are studied , which are also applicable to non-GIS electric energy metering devices .
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PLOD是一种基于幂率的网络拓扑生成算法,但该算法不能保证生成拓扑图的连通性,且存在出度贷款过剩现象。
PLOD is a network topology generating algorithm for power-laws . But PLOD cannot guarantee the connectivity of the topology .
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依据视觉生理学和视觉心理学关于不同颜色间存在敏感度差异的理论,并利用Stevens法则和HSV颜色空间的六棱锥模型,提出了一种构造颜色敏感度函数的算法。
A color sensitivity function is then constructed based on the Stevens 's power law and the hexagonal-pyramid model of the HSV color space , which is also supported by visual-physiological and visual-physiological theories .
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主要研究工作如下:1、传统BA无标度网络中节点的最大度随着网络规模无限增大,使得网络中存在少数度非常大的hub节点。
The main research work are as follows : 1 . In traditional BA scale-free networks , the maximum degree of nodes increases unlimitedly with the scale of networks , which makes a few hub nodes with very large degrees exist in the networks .
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Sierpinski海绵的自相似性分析结果显示其内表面只在局部范围内存在标度不变性。
The self similarity of the inner surface of Sierpinski sponge is analyzed , the result of which demonstrates that the inner surface of Sierpinski sponge is not scale invariant over the whole range of scale transformations .
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图中含有给定圈的正则因子存在性度条件
A degree condition for graphs to have regular factors with given cycle
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在前二个字启动时,非对称成语的识别还存在熟悉度效应。
The familiarity effect was also found in the recognition of asymmetrical phrases .
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三级元音方面,音段间协同发音不佳。缅甸学生也都存在开口度偏大的问题。
The co-articulation between segments of Myanmar students ' Level 3 vowels is also poor .
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但存在自由度的瓶颈问题限制了系统容量的提升。
But there is a " freedom of the bottleneck problem " that limit the capacity of systerm .
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在运用过程中,发现其存在标度选用不合理,判断矩阵不一致等问题。
But there are still some problems in the application process , such as unreasonable scale selection , inconsistent judging matrix .
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而针对所研究的内容是否存在拟合度更好的模型?本文没有做进一步的研究和探讨。
This article does not do further research and exploration , whether there is a better fitting degree of the model for the study ?
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在移动计算环境中,基本乐观并发协议的事务处理存在并发度低和重启率高等问题。
In mobile computing environment , low concurrency and too many unnecessary transaction restarting exist in original Optimistic Concurrency Control Protocol ( OCCP ) .
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试验结果表明:这三项指标基本达到了各国规范的要求,该楼板不存在舒适度问题。
The results show that these three targets of the floor are consistent with the international norms , and the testing floor is comfortable enough .
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发现蓥华山风景区存在知名度不高、景区活动项目单一、管理人才匮乏等问题。
Discover Ying Hua mountain scenery district existence famous degree not high , scene district campaign project the problems such as unitary , management talent scarcity .
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通过对一设置粘滞阻尼器并存在刚度偏心的钢筋混凝土框架结构进行动力分析,说明粘滞阻尼器能够有效减小结构的扭转反应。
Through the dynamic analysis of reinforced concrete frame structure with rigidity eccentricity , the torsional response of structures with fluid viscous dampers can be reduced .
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针对油田开发污染源存在危险度,提出一种将灰关联度分析与故障树分析相结合的危险度评价模型。
This paper puts forward a model for the appraisal of hazard degree of pollution origins in oilfield development which combines fault tree analysis and gray connection degree analysis .
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由于所研究的压电陶瓷片是由压电陶瓷层和薄铜片两种不同材料所组成,因此不仅存在自由度的耦合问题,同时还存在不同物理场的耦合问题。
This piezoelectric ceramic piece is composed of two kinds of different materials , there exits coupling question of degree of freedom , and the coupling of different physical field .
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对于缓冲区溢出静态分析,已有的指针分析算法存在复杂度太高或者分析精度太低的不足。
Many pointer analysis algorithms have been developed , but the current state-of-the-art pointer analysis algorithms are either too imprecise or too complex to be used for static buffer overflow detection .
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医学和工业图像中目标物体常常存在对比度差和噪声干扰等问题,通过图像增强可以有效改善图像质量。
The medical and industrial images often suffer from the problems of poor contrast and noises . The enhancing algorithm for the images could significantly improve the quality of the images .
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在经过初步的计算之后,发现该结构的原设计方案存在刚度不足及两端推力过大等问题。
After preliminary calculating , some imperfections of the former design in this structure , such as weak stiffness , large horizontal force at both end supports and so on , were found .
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通过对某具体油田区块测试数据分析,指出该区块油井存在沉没度、排量系数低的现象,提出了提高抽油泵排量系数、改善工作性能的措施。
The statistics on the measured data in a oil-field shows the submergence depth and discharge coefficient are very low , some key measures for improving discharge coefficient and sucker rod pump performance are presented ;
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缅甸学生所发的二级元音都存在开口度偏大的问题,衔接得不自然,每个音都发得十足到位,多像是两个单元音的简单组合,而不像是个复元音。
Myanmar students ' level 2 vowel exist the bigger openness and convergence unnaturally , which are full of every sound , more like a simple combination of two vowels , not like a complex vowel .
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其次以测控站S频段仿真系统为例,分析了陆基S频段测控网仿真应用的现状,指出了存在置信度偏低等问题;
Secondly , by taking the simulation system of a typical S-band TT & C station as an example , it is analyzed the current status of GSTN and studied the problem that simulation reliability is low .