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聚集分布的英文

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"聚集分布"怎么读用"聚集分布"造句

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  • aggregated distribution

例句与用法

  • 2 the spatial pattern of the over - wintering form of tetranychus viennensis zacher was aggregation distribution
    2越冬态山楂红蜘蛛的空间分布型都是聚集分布
  • 4 reaumuria soongorica and haloxylon ammodendron in desert - oasis ecotone show random distribution . the seedling of h . ammodendron shows clump distribution
    4 、过渡带红砂和梭梭服从随机分布,梭梭幼苗表现为聚集分布
  • The results showed that the a cinerarius populations were in aggregated pattern of distribution during tile three years in this district , but the aggregation degree as well as the spatial and quantitative distribution varied dynamically
    结果显示, 3年中春尺蠖种群均为聚集分布,但聚集程度、种群空间分布和数量处于动态变化之中。
  • The study also indicated that all the tree species but keteleeria evelyniana appearing to have an aggregate distribution had a random distribution in the canopy layers and all the dominant species had a aggregate distribution in the renewal layers
    研究还表明,在林冠层中,除了滇油杉在山坡上部为聚集分布外,其他树种的分布格局均呈随机分布;在更新层中,优势种类均为聚集分布。
  • The experiment results provided a basis for establishing inhibitor ablation model and thermal protection design . the work of this paper can be summarized into four parts : 1 . by analyzing the characteristic of the flow field of srm under high acceleration condition , the following phenomena were discovered : particles were deflected and concentrated in local region by overloading , which reinforced inhibitor ablation , and the particle distribution alone the wall was affected by several factors
    本文的研究工作概括为以下四部分: ( 1 )通过分析固体发动机在高过载作用下的流场特点,发现流场中凝相粒子在过载作用下发生偏转,并在局部大量聚集而形成稠密的粒子流,强化了对绝热层的烧蚀;粒子在发动机壁面上的聚集分布受多种因素影响。
  • The results of the investigation in forests showed that dastarcus helophoroides adults displayed a core distribution pattern , that belonged to aggegated distribution , and changed to mosaic distribution pattern in a denser population due to the exclusion behavior among the individual in host competition
    摘要林间调查和研究表明,花绒坚甲成虫的分布格局为聚集分布中的核心分布型,在群体密度较大时,由于个体间具有竞争寄主的排斥行为,其分布则转变为嵌纹分布;花绒坚甲在进入新的分布区后,首先是建立大小不等的聚集群,再以聚集群体的形式向周围扩散。
  • It was shown that in most cases p . euphratica appeared to have an aggregative distribution at different distances away from the river but it tended to be diffusive , appearing to have an random distribution ; in the two cross sections , p . euphratica tended to increase its distribution pattern scale and aggregation intensity as the distances increased and the distribution pattern scale of p . euphratica in kaerdayi cross - section was lower than that in yingsu cross - section at the same distances away from the river , which was because the cross sections had different underground water conditions and topographical conditions
    结果表明:胡杨在不同离河距离大都表现为聚集分布,在离河最远的地方有扩散趋势,呈随机分布;不同离河距离的两断面均表现出随离河距离加大胡杨格局规模加大、聚集强度加强的趋势,同一离河距离喀尔达依断面比英苏断面胡杨格局规模小,这主要是地下水条件和当地地形不同所致。
  • Taxus chinensis var . mairei population in form . taxus chinensis var . mairei community using six aggregate indices ( c , i , i m , pai , ca , ) , then analyze the causes of evolved pattern . the results indicated that the distribution pattern of seedling were all clumped in every plot , however , the distribution patterns of sapling , media tree and mature tree were mostly random . the trend of diffuse of form
    )回归分析法研究了南方红豆杉林中南方红豆杉幼苗、幼树、中龄树和成树的分布格局及动态,并分析格局形成原因,结果表明,各样地南方红豆杉种群幼苗均成聚集分布,幼树的分布格局偏向于随机分布,而中龄树与成树则为随机分布,从幼苗到成树,随机扩散的趋势十分明显。
  • Taxus chinensis vsr . mairei population is very oblivious from seeding stage to mature tree stage . the patterns were consistant with the ecological and biological characteristics of form . taxus chinensis var . mairei which were valuable and rare and in severe danger . in this paper , logistic model and liu - logistic model were proposed to approach the growth dynamics of tree basal area of form . taxus chinensis var . mairei population
    南方红豆杉幼苗表现为较强的聚集分布,除与种子的散布有关外,生境条件的差异是重要原因之? ,其它发育阶段表现为明显的随机分布,表明它在自然群落中分布的概率很小,反映了南方红豆杉珍稀濒危的生态生物学特性和特征。
  • The competition among those species like s . tsinyunensis , dryopteris erythrosora and veronicastrum stenostachyum etc . , is intense in the communities , which may be one of the reasons why s . tsinyunensis is going to be endangered and with a very restricted distribution . the distribution patterns of the seven populations of s . tsinyunensis are clumped among the eight populations we studied , except population v of random distribution . the spatial pattern of 6 populations of s . tsinyunensis have high consistency with the negative binominal distribution , while another 2 populations , i . e . , i and iii are poisson distributions
    6 )缙云黄芩各种群空间分布格局基本呈聚集分布,其中7个种群的分布格局类型是聚集分布,其聚集强度较高,另有一个种群为随机分布;其种群的离散分布拟合结果也严格符合一定的数学模式,其中负二项分布、 poisson分布分别是该物种种群空间分布的理论分布模式,其中6个种群拟合出的结果是负二项分布,种群i和种群m拟合出的结果是poisson分布。
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