pure chemistry 中文意思是什麼
pure chemistry
解釋
純粹化學-
International union of pure and applied chemistry iupac
國際理論和應用化學聯合會 -
International union of pure and applied chemistry iupa
國際純粹和應用化學聯盟 -
This article points out a misconception in physical chemistry " the value of gibbs function is equal when binary system of pure substance is in phase balance "
摘要指出了「單元復相系平衡狀態時，兩相中的吉布斯函數值相等」說法的錯誤。 -
At least one subject from al pure mathematics, alas applied mathematics, as mathematics & statistics, al physics or al chemistry
至少一科必須為高級純粹數學、高級或高補應用數學、高補數學及統計學、高級物理或高級化學 -
E maths, a maths, pure physics, pure chemistry, combined science chemistry, combined science physics secondary normal technical
初數，高數，純物理，純化學，純物理，綜合科學化學，綜合科學物理 -
The synthesis of enantiomerically pure compounds is becoming increasingly important for research and development in chemistry and biochemistry, especially in the pharmaceutical industry, as chiral drugs now represent close to one - third of all pharmaceutical sales of world wide
摘要合成光學純的化合物在化學及生物化學的研究和發展中正變得越來越重要，尤其在制藥行業中目前手性藥物近佔全球藥品總銷售額的三分之一。 -
We ouya hax our own professional team of advanced researchers and thoroughly skilled workers in madding violins. the literae humanious and natural science such as chemistry, physics and acoustics are well combined here while manufacturing. the violins are made strictly according to international standards and traditional arts. they are well accepted by people in east - asia, europe and america for their beautiful shapes, excellent workmanship, pure and beautiful timbre and megaphonia, their sensitivity of tones, strong penetrating power and unique feature of performing, etc
歐雅樂器擁有先進的研製力量和技能精湛的專業隊伍，將化學、物理、聲學等自然學科與文人科學相結合，採用國際標準，結合傳統工藝製作，並以造型大方，工藝精湛，音色純厚、優美、聲音宏亮，發音靈敏、穿透力強，演奏性能佳等優點而暢銷東南亞及歐美各國。 -
Based on the experimental results and the correlative chemistry theory, the phases formed in the process and its influenceable factors were studied. the significant results were enumerated as follows : as for the mn - h2o system, 5g pure mn scraps ( 99. 5 %, - 200mesh ) and distilled water served as the starting materials were milled by high energy ball miller together with 200g steel balls as the milling medium. the experiments were conducted with the rotation speed of 380rpm. - mn3o4 nanopowders were fabricated after milling some time and would experienced phase transformations if continue to be milled. the reaction would be accelerated if a little of hcl or mnso4 was added while be decelerated if. a little of naoh was added. the - mn3o4 phase with particl size between 20 ~ 100 nanometer was obtained after milling 1. 5h when trace hcl was added. the oxygen added to the ball tin has little effect on the reaction
主要實驗結果如下: （ 1 ）對于mn - h2o系，通過高能行星式球磨機，在50ml蒸餾水中球磨5gmn粉末，球料比為40 : 1 ，轉速為380rpm ，球磨一定時間后獲得了納米級單相- mn3o4 。隨著球磨時間的延長，生成的- mn3o4會繼續被氧化或發生晶型轉變。加入微量hcl或mnso4會明顯加快mn的反應，加入hcl后，球磨1 . 5h后即獲得粒徑為20 100nm的單相- mn3o4粉末;加入微量的naoh會抑制mn反應生成- mn3o4 。
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