boord reaction中文意思是什麼

boord reaction解釋
伯爾德反應

  • boord: 布爾德
  • 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】...

※英文詞彙boord reaction在字典百科英英字典中的解釋。

  1. The electron acceptor used was a ferric salt that was reduced to the ferrous form during the reaction.

    所用的電子受體是一種高鐵鹽,在反應時它還原成亞鐵。
  2. The corresponding reaction of acetaldehyde is subject to general base catalysis.

    乙醛相應的反應服從廣義的堿催化。
  3. The results indicate that : 1. the main physical and chemical characteristics vary regularly : with rising of the altitude, there is a transition from silt > sand > clay to sand > silt > clay in the mechanical composition ; the argic horizon emerges below the altitude of 1600 meters ; the content of organic matter is enrichment, the content of organic carbon of epipedon is higher than 20 g / kg, while the content of organic carbon increases with increasing of altitude, and in the altitude of 3500 - 3700meters, the soils under the meadow have the maximum content organic carbon ; the soils appear acid - slightly acid reaction, the ph decreases appreciably and acid strengthen with increasing of altitude ; the soils higher than the altitude of 2500 meters are base unsaturated, indicating the soil leaching is strong, the ph and bs are distinct plus correlated ; the contents of sio2, al2o3, and fe2o3 of the soil body and clay are all relatively stabilization ; in the soil body, the content of sio2 is much high and cao is very little, the total contents of sio2, a12o3 and fe2o3 occupy 92 % of the mineral parts, the sequence of mineral elements is : sio2 > al2o3 > fe2o3 > k2o > mgo > cao > tio2 > mno

    研究結果表明: 1太白山南坡土壤的主要理化性質隨海拔高度的上升呈有規律的變化:隨海拔高度上升,機械組成由粉粒砂粒粘粒逐漸過渡到砂粒粉粒粘粒,海拔1600m以下出現粘化層;土壤有機質豐富,表層有機碳含量一般在20g kg以上,有機碳含量隨海拔高度升高而相應增加,海拔3500 3700m的灌叢草甸植被下有機碳含量最高;土壤呈酸性或微酸性,並隨海拔上升, ph值略微降低,酸性增強,海拔2700m以上的土壤多呈鹽基不飽和狀態,表明土壤淋溶作用較強, ph值和鹽基飽和度呈極顯著正相關;土體與粘粒中的sio _ 2 、 al _ 2o _ 3 、 fe _ 2o _ 3含量相對比較穩定,土體中sio _ 2含量較高, cao含量較少, sio _ 2 、 al _ 2o _ 3和fe _ 2o _ 3含量之和約占土壤礦質部分的92 ,礦質元素含量的順序依次為: sio _ 2 al _ 2o _ 3 fe _ 2o _ 3 k _ 2o mgo cao tio _ 2 mno 。
  4. Abstract : the reaction conditions, catalysts of selective oxidation of propane to acrolein and the mechanism of acrolein formation were reviewed

    文摘:論述了丙烷選擇氧化制丙烯醛催化反應的反應條件、催化劑和丙烯醛生成機理等方面的研究進展。
  5. The development of adscititious particle reinforced aluminium matrix composites and al matrix in - situ composites reinforced by reaction synthesis " reinforcement phase are reviewed at first. and the papers point out the difficulties and problems on the study of al matrix composites at present

    本文首先回顧了外加顆粒增強鋁基復合材料和反應合成強化物增強鋁基原位復合材料的研究進展,指出當前鋁基復合材料研究中存在的問題。
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