substituted ratio 中文意思是什麼

substituted ratio 解釋
取代度
  • substituted : 取代的；代替的
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. Niche breadth of four dominate populations at three age groups was studied by the methods of resource utilization ability and ratio. the result shows that : symplocos sectchuanensis is a typical gengeration species whi ch resource utilization ability is strong, and distribution is wide. meanwhile, go rdonia acuminata, castanopsis fargesis and pinus massoniana specialized at some d egree in resource utilizationm, their distribution is limited. especially, the ju venile of pinus massoniana specialized outstandingly. with the devlopment of pinu s massoniana, which is the pioneer population in mt. jinyun, the environment become s unfit to it ' s juvenile. it turns to needle and evergreen broad - leaves mixed fo r est. because the tolerance toward shading of gordonia acuminata is lower than tha t of castanopsis fargesis, gordonia acuminata will be substituted by castanopsis fargesis and other evergreen broad - leaves species are the edificators. the popul ation ' s ability of resource utilization is the inner factor of population distri bution and community succession. the distribution of light and the concentrate of nutrient ( such as n ) is the outer factors of community succession

    對縉雲山森林植被的4個優勢種群3個年齡級生態位寬度進行了研究.結果表明，川灰木利用資源的能力最強、分佈廣，為典型的泛化種.大頭茶、栲樹、馬尾松對資源的利用在一定程度上特化，分佈上有一定的局限性.馬尾松的中齡組與幼齡組特化現象十分顯著.縉雲山森林植被的先鋒種馬尾松的發展，導致環境的改變不適于其幼齡個體的生長，群落演替到針闊葉混交林階段，最後發展為以栲樹等為建群種的常綠闊葉林.種群的資源利用能力，是種群分佈與群落演替的內在原因，光因子和營養元素（如n ）是群落演替的主要外部動力
  2. To meet the need of settlement calculation with fem when absence of laboratory triaxial test data in common road engineering, methods of determining the five parameters included in tangential elastic module through soil routine tests and the related emendation coefficient are given. at the same time, one approximately substituted formula for tangential poisson ratio is also developed, which is suitable for both sandy soil and cohesive soil. ( 3 ) research on main parameters modification of duncan - chang model based on the improved bp network

    對於一般道路工程中不做三軸試驗但須進行沉降有限元計算的情況，給出了依據土體常規試驗的切線彈性模量確定方法和相關修正系數，同時也提出了對砂性土和粘性土均適用的切線泊松比的近似替代式子； （ 3 ）基於改進的bp網路對鄧肯張模型主要參數修正研究。
  3. Combining with the unique life circle of the new economic companies, the article suggests that surplus record should be substituted by operation revenue as core criterion of ipo and delisting consecutive deficient companies should be substituted by assets - beneath - debt criterion. then through analyzing the contribution ratio of the different transaction institution and combining the current situation of our capital market, this article points out that a mixed transaction combining market - maker institution with instruction - driving institution

    同時，因為文章對上市制度和交易制度的分析，注重的是理論上的創新和探求，所以對上市制度關注的是決定其核心理念的上市標準選擇，對交易制度關注的核心交易方式的選擇，而對于其它上市和交易程序的具體安排只是簡述觀點。
  4. That the arched roadway with the ratio of 0. 2 between arch rise and roadway width is substituted fur rectangular roadway can obviously improve the stress state of roadway surrounding rocks, reduce the deformation and the plastic yield area of roadway surrounding rocks, greatly strengthening the stability of roadway surrounding rocks

    採用矢跨比為0 . 2的圓弧拱巷道代替矩形巷道，可顯著改善巷道圍巖應力狀況，減小巷道圍巖變形量，減少圍巖塑性屈服區域，加強巷道圍巖的穩定性。
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