趨化因子測定 的英文怎麼說

中文拼音 [qūhuàyīnzicèdìng]
趨化因子測定 英文
chemotactic factor assay
  • 趨 : 動詞1. （快走） hasten; hurry along 2. （向某個方向發展; 趨向） tend towards; tend to become
  • 因 : Ⅰ動詞[書面語] （沿襲） follow; carry on Ⅱ介詞1 [書面語] （憑借; 根據） on the basis of; in accord...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 測定 : determine; determination; setting-out; admeasurement; assignment; assay; finding
  1. Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments. the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose, sucrose, malic acid, mannitol ), propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum, at a ph range of 4 to 8. 5, at a saline concentration range of 0. 01 % to 1. 5 % ; low nlv " concentration had little effect on its nitrogenase activity. ara could also be detected when it grow in the culture media with 5mmol / l ntv "

    W12菌株對環境因子的適應性研究：無氮培養條件下，測定溫度、碳源、酸堿度、滲透壓對w12生長及固氮能力的影響，結果表明，在15 - 40下均能生長並表達固氮酶活性，其最適生長及固氮的溫度為25 - 35 ；能利用葡萄糖、蔗糖、蘋果酸、甘露醇等多種碳源生長並固氮，當培養基中同時存在蔗糖和蘋果酸時，細菌生長和固氮活性最強；在偏酸和偏堿的條件下（ ph4 . 5 - 8 . 5 ）均能保持較強的生長勢和較高的固氮酶活性，並能通過調節自身代謝平衡並適應環境的酸、堿性變化，使培養液趨于中性：能耐受較高的滲透壓，培養液中卜、 5 naci濃度對其生長和固氮酶活性影響不大，當naci濃度升至2時，菌株的生長勢及固氮酶活性才有所下降：低濃度的鉸對其固氮酶活性影響不大，在0
  2. The approaches establish a relationship between monthly precipitation abnormality and monthly circulation, soil moisture and temperature on the shallow and deep layers. the relationship is the precipitation diagnostic equation and its coefficients and dimensions are determined by using the observed data of huai river basin. then we select the main soil moisture and temperature attributing factors by the dimensional analysis to establish a forecasting equation of summer precipitation over huai river basin with the statistic approach

    通過將大氣中的熱量、水汽收支方程與一個簡化的兩層土壤溫度、濕度方程相結合，並依據月尺度大氣環流的演變特徵，推導出月降水距平與500hp月平均高度距平場、土壤深淺兩層溫、濕度的關系；利用臺站觀測資料，使用統計反演方法確定方程中各項的系數和量級，從而找出影響降水的主要土壤溫、濕因子；利用統計方法建立這些因子與淮河流域夏季降水異常之間的簡單線性預報方程，並對1992 - 2000年淮河流域夏季降水趨勢進行回報。
  3. The landscape pattern is in the constant development and change, and today ' s pattern took shape based on the past landscape flows, including natural, social, economic and various kinds of ecological processes, therefore through analyzing the landscape pattern change at different time, we can reflect the landscape ecological processes, expound succession mechanism and rules in landscape, predict the variation tendency in the future of the landscape, and realize the sustainable utilizing of landscape resource finally

    景觀格局不僅體現著自然的、生物的和社會的各種生態過程在不同空間尺度上相互作用的結果，同時又決定著各種自然環境因子在景觀空間上的分佈和組合，從而制約著各種生態過程，影響著景觀內能量流、物質流和物種流的變化。因此，通過研究景觀格局可以更好地理解生態學過程，通過分析景觀格局隨時間的變化可以反映景觀生態過程，揭示景觀演替的機制和規律，進而預測景觀的未來變化趨勢，最終實現資源的可持續利用。
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