antioxidant b 中文意思是什麼

antioxidant b 解釋
抗氧劑b
  • antioxidant : n. 防氧化劑，抗氧化劑〈用做食物防腐劑〉。adj. 防氧化的。
  • b :
  1. Protection against synergistic hepatocarcinogenesis of hepatitis b virus expression and aflatoxin b1 by antioxidant 2 - tert - 4 - hydroxyanisole in hbv large envelope transgenic mice

    抗氧化劑對黃麴黴毒素染毒的轉基因小鼠肝腫瘤的防護
  2. Meanwhile, fundamental principles about electroless tin plating by reducing agent and disproportionation reaction were explained. function of every component in the bath was explained that complexing agent can effectively change the potential of copper and tin, and accelerate the beginning of replacement reaction favorably ; reducing agent can increase the rate of chemical reaction and has the effect of promoting reaction dynamics too ; antioxidant can effectively prevent sn2 + in the bath from being oxidated ; additive agent a can improve the stability of the bath ; additive agent b has such effects as refining and brightening for the tin deposits, and it enlarges the range of brightening section ; additive agent c used as leveling agent can not only make the depostis level off, but also improve the dispersive ability of the bath ; surface - active agent can solve bubble problem which gathered on the surface of the deposits, and improve the surface quality of the deposits and the bath stability

    闡述了鍍液中各組分的作用：絡合劑能有效地改變銅、錫的電位，促使初期的置換反應順利進行；還原劑能加快化學反應速度，對反應動力學有積極的促進作用；抗氧化劑能有效地防止鍍液中sn ~ （ 2 + ）的氧化；添加劑a能提高鍍液的穩定性，添加劑b對鍍層能有細化和光亮作用，擴大了鍍層光亮區的范圍；添加劑c作為平滑劑，不僅能增強鍍層表面的平整性，而且能提高鍍液的分散能力；表面活性劑較好地解決了化學鍍過程中汽泡在鍍件表面聚集的問題，提高了鍍層的表面質量和鍍液的穩定性。
  3. Enhanced uv - b radiation greatly decreased the content of photosynthetic pigments : chlorophyll a, chlorophyll b, and total chlorophyll. supplemental uv - b radiation induced the antioxidant system change

    Uv - b明顯降低紫萍光合作用色素（葉綠素a 、葉綠素b及總葉綠素）含量，這將導致光合作用下降。
  4. Antioxidant a substance that slows or inhibits oxidation reactions, especially in biological materials or within cells, thereby reducing spoilage or preventing damage. natural antioxidants include vitamin e and b - carotene

    抗氧化劑：一種減慢或者抑制氧化反應的物質，特別是在生物材料或細胞內，可以減少或者阻止傷害的發生。天然的抗氧化劑包括維生素e和胡蘿卜素。
  5. N - phenyl - b - naphthylamine ( antioxidant d ) and 2, 6 - di - tert - butyl - p - cresol ( anti - oxidant bht ) are the two kinds of antioxidant which are extensively used in our country. their standard reference materials can be used to rectify instruments and measure our analytical methods

    防老劑d與bht標準物質可作為行業對其產品純度檢測的基準，用於校準測量儀器，評價測量方法的準確度，保證測量結果的準確性。
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