比例相似系數 的英文怎麼說

中文拼音 [bǐlìxiāngsìxìshǔ]
比例相似系數 英文
proportional similarity coefficient
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 比例 : 1. （長度上縮小和放大的倍數） scale; scaling 2. （比率） proportion; ratio; proportionality
  • 相似 : 1. （相像） resemble; be similar; be alike 2. （相像處; 類似物） similarity; similitude; analogue
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us

    本文從南方紅豆杉種群生態學的角度、主要應用數學生態學的方法探討南方紅豆杉種群的數量特徵，包括南方紅豆杉種群年齡結構、種群空間格局（探討分佈格局動態規律與生境相互關系） 、不同立地條件下種群優勢度增長趨勢、生態位寬度、生態位相似比例、生態位重疊、空間占據能力及種間競爭等，分析其目前現狀及瀕危原因，期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎，也為瀕危植物種群生態學的研究提供參考。
  2. Cluster analysis by upgma methods indicated that these five stocks might be divided into three clusters. results of rapd a nalysis suggested that extensive genetic diversity was detected in this species and the genetic divergence among stocks was relatively high ; upgma phylogenetic tree showed there existed three geographic populations of p. polyactis in the yellow sea and the east china sea, which supported the previous conclusion by morphological and ecological methods. part two : the genetic diversity between trichiurus lepturus and eupleurogrammus muticus random amplified polymorphic dna ( rapd ) technique was applied to 12 individuals from each species of the hairtail fishes trichiurus lepturus and eupleurogrammus muticus collected from the yellow sea

    50一2 . 44 ） ，群體內和群體間的遺傳變異比例分別為69 %和31 % ;群體間的平均遺傳相似度和遺傳距離分別為0 . 9139和o . q861 ;用非加權配對算數平均法（ unweightedpair - groupmethodofari山m七tiome即s ， upgma ）聚類分析的結果表明，所分析的5個群體可被分為3個地理群系，從分子水平上支持了過去有關學者把黃海和東海的小黃魚劃分為北中南3個地理群系的觀點。
  3. The tank model with scale of 1 : 5 is built and model test is carried out. by dimension analysis, resemblance between archetype and model is confirmed. 2

    設計製作了比例系數為1 ： 5的罐體結構模型；通過對影響平臺罐體受力狀態的各主要物理量的量綱分析，確定了模型與原型結構的相似性；並進行了模型試驗。
  4. Adopting archimedes number arq as similarity standard, the author determine every kind of similarity scale according to geometry scale 1 / 18 and other limit condition, at the same time, complete organization of model essence, simulation heat source system, design and arrangement of air supply and exhaust system according to every kind of similarity scale

    採用熱量阿基米德數arq作為相似準則，按照1 / 18的幾何比例尺以及其他制約條件確定各種相似比例尺。根據各種相似比例尺完成模型本體結構、模擬熱源系統及模型送排風系統的設計和配置。
  5. The resultshowed that the majority of the species in the wan mu ling are of narrow niche, the relationamong the species is very complex and many species share in the resource ; the niche proporrion - al similarity and the niche overlap index reflect the niche characteristics of the evergreen broadleaved woodland in subtropical forest

    結果表明：組成萬木林森林群落的種群絕大多數為狹生態位、種群之間關系復雜，對資源具有一定的共享性；種群之間的生態位相似性比例和生態位重疊指數指標值反映了亞熱帶常綠闊葉林的生態特徵。
分享友人
分享到 Line

分享到臉書