replacement reaction 中文意思是什麼

replacement reaction 解釋
直換反應；復分解反應
  • reaction : n 1 反作用，反應；反沖；反動力。2 【政治學】反動，倒退；復古（運動）。3 【化學】反應，【物理學】...
  1. Deposition mechanism of electroless plating tin in acid chloride solutions was analyzed theoretically, and three steps were summed up, including period of replacement reaction, coexistence periods of copper - tin codeposition and self - catalyzed deposition, and period of self - catalyzed deposition

    從理論上系統地分析了酸性氯化物化學鍍錫的沉積機理，將其歸納為置換反應期、銅錫共沉積與自催化沉積共存期和自催化沉積期三個階段。
  2. We utilized microarray and real - time quantitatie polymerase chain reaction ( pcr ) to identify genes differentially expressed at 6 h reperfusion in periinfarct cortex from castrated rats with or without dht replacement

    我們利用微點陣和實時定量pcr方法在再灌注6小時時，對進行/未進行dht替代的閹割大鼠梗死周圍皮層的基因差異表達進行了鑒定。
  3. We utilized microarray and real - time quantitative polymerase chain reaction ( pcr ) to identify genes differentially expressed at 6 h reperfusion in periinfarct cortex from castrated rats with or without dht replacement

    我們利用微點陣和實時定量pcr方法在再灌注6小時時，對進行/未進行dht替代的閹割大鼠梗死周圍皮層的基因差異表達進行了鑒定。
  4. 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。
  5. Study on competition reaction and replacement reaction of metallothioneins with lead ion

    金屬硫蛋白結合鉛離子的競爭反應和置換反應研究
  6. Metallothioneins ; lead ion ; competition reaction ; replacement reaction ; cd ; uv

    金屬硫蛋白鉛離子競爭反應置換反應圓二色性光譜法紫外光譜法
  7. By using circular dichroism spectroscopy method and ultraviolet absorption spectrophotometry, competition reaction and replacement reaction of metallothioneins with lead ion were investigated

    Mt - 。採用圓二色性cd光譜法和紫外uv吸收光譜法研究金屬硫蛋白結合鉛離子的競爭反應和置換反應。
  8. When feeding, electric hoist ( l101 ) can be used to hoist the bucket onto the generator hopper, calcium carbide bucket will feed the calcium carbide into hopper after nitrogen replacement, and then the calcium carbide will be automatically thrown into acetylene generator ( t101 ) by the inertial oscillator to generate acetylene after reaction with water

    加料時，用電動葫蘆（ l101 ）將吊桶吊至發生器貯料鬥上，電石桶經氮氣置換后將電石加入貯料斗，然後用慣性震蕩器將電石自動投入乙炔發生器（ t101 ）中與水反應產生乙炔氣。
  9. When feeding, electric hoist ( l101 ) can be used to hoist the bucket onto the generator hopper, calcium carbide bucket will feed the calcium carbide into hopper after nitrogen replacement, and then the calcium carbide will be automatically thrown into acetylene generator ( t101 ) by magnetic oscillator to generate acetylene after reaction with water

    加料時，用電動葫蘆（ l101 ）將吊桶吊至發生器貯料鬥上，電石桶經氮氣置換后將電石加入貯料斗，然後用電磁振蕩器將電石自動投入乙炔發生器（ t101 ）中與水反應產生乙炔氣。
  10. Solvent replacement experiment provided direct evidence that there was water - rich adsorption layer and the reaction took place in the layer. the changes of the water in adsorption system were determined by kf - 1 water microdetector and from these data the volume of the adsorption layer on sio2 was calculated

    首先用溶劑置換實驗驗證了納米反應器的存在且是反應和粒子生長的場所；再結合卡爾?費休水分測定儀測定了吸附體系中水分的變化，計算了sio _ 2表面吸附層的厚度。
  11. The experimental results show that in situ reaction between several oxides and al balances adiabatic temperature and controls the drastic reaction between cuo and al. at the same time, this kind of in situ reaction also accelerates the other replacement reactions and makes them react till to the end

    實驗結果表明採用多種氧化物原位反應法合理調配了不同反應的絕熱溫度，控制了cuo與al劇烈的鋁熱反應，同時促進了其它單質氧化物與al反應，使其能自我維持進行下去。
  12. There has been an increasing interest in the production of particulate reinforced aluminum matrix composites by the replacement reaction between low - cost oxides and al

    採用廉價氧化物與al的置換反應來制備al _ 2o _ 3顆粒增強鋁基復合材料的方法是目前的研究熱點。
  13. All the subjects were genotyped by pcr - rflp ( polymerase chain reaction - restriction fragment length polymorphism ) at polymorphic sac i site inside the exon 7 of the ahsg gene. this polymorphism involves a nucleotide substitution of c to g at the middle nucleotide of the codon at amino acid position 238 resulting in the replacement of threonine ( acc ) with serine ( agc )

    所有的樣本通過聚合酶鏈式反應?限制性片段長度多態性方法（ pcr - rflp ）對ahsg基因的第7個外顯子內的sac多態性位點進行基因分型，該多態性位點為238號氨基酸密碼子中間的堿基c到g的替換，使蘇氨酸（ thr ， acc ）變為絲氨酸（ ser ， agc ） 。
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