index of variability 中文意思是什麼

index of variability 解釋
變異指數
  • index : n （pl es dices ）1 索引。2 指標，標準，標志。3 示[食]指 （＝index finger）。4 指數。5 【印刷】指...
  • of : OF ＝Old French 古法語。
  • variability : n. 易變，變化性；【生物學】變異性。
  1. A total of 145 rapd loci were obtained, of which 132 loci ( 91. 03 % ) were polymorphic. genetic diversity quantified by shannon index varied from 1. 50 to 2. 44 with an average of 1. 93 ; partition of genetic variability indicated that 69 % was distributed within, and 31 % among stocks

    從40個1obp引物中選取20個用於群體遺傳多樣性分析，共檢測出145個位點，其中132個（ 91 . 03 % ）顯多態性;用shannon多樣性指數量化的平均遺傳多態度為1
  2. Thesis vise reliability analysis method of stability analyze the stability of the simple clay slope, announce inner link of soil parameter ' s variability and safety coefficient, reliability index of slope in the model : ( 1 ) the variability of the soil parameter has very great influence on value of dependability index dependability index value appears the total trend dropped along with the variability of soil parameter increasing ; when the variability of soil parameters is less, about < 0. 2, it ' s influence to is more sensitive ; when > 0. 3, it ' s influence to reduce obviously

    本文以簡單粘土邊坡為例，用邊坡穩定可靠性分析方法分析邊坡的穩定性，揭示邊坡模型中土性參數的變異性與安全系數及可靠指標之間的內在聯系： （ 1 ）土性參數的變異性對可靠性指標值有很大的影響。可靠性指標值隨土性參數c ，變異性的增大而呈現下降的總趨勢；在土性參數變異性較小時，一般在0 . 2時，對的影響特別敏感；而在0 . 3時，受的影響則明顯減小。
  3. The precipitation and evaporation data at 12 observational stations from 1958 to 2003 were used to calculate the spring drought index, the criterion of spring drought and the spring drought index series were set up, the spatial and temporal features, yearly and decadal climate variability of the indexes of the loess plateau in gansu province were analyzed

    摘要利用甘肅省甘肅黃土高原地區12個代表站1958 ~ 2003年春季3 ~ 5月逐候降水、蒸發資料，建立了該地區早春旱和晚春旱指數序列，確定了春旱等級標準，進一步分析了春旱的時空分佈特徵及其年際（年代際）變化規律。
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