narrow molecular weight distribution 中文意思是什麼

narrow molecular weight distribution 解釋
窄分子量分佈
  • narrow : adj 1 狹 窄 狹隘的 狹小的 (opp broad wide)。2 有限的 受限制的;有偏見的 氣量小的 心眼兒窄的;眼...
  • molecular : adj. 分子的,由分子形成的,分子內[間]的。adv. -ly
  • weight : n 1 重量;體重;求心力,重力,(地心)引力。2 斤兩,分量,衡,計重單位。3 (壓東西的)重物。4 砝...
  • distribution : n 1 分配,分發,配給;分配裝置[系統];配給品;配給量;【經濟學】配給方法,配給過程;分紅;【法律...
  1. The density, viscosity, refractive index, molecular weight and sulfur amount of the fractions are on the increase with the increasing cumulative yield, while their molecular weight exhibits a narrow distribution from 300 to 400

    研究表明,隨累積萃取收率的增加,大慶和遼河油漿窄餾分的密度、粘度、折光率、硫含量及芳碳率呈增大趨勢,油漿窄餾分的相對分子質量分佈較窄( 300 ~ 400 ) 。
  2. The products are polyethers synthesized with new catalyst, characterized by low unsaturation, narrow molecular weight distribution, high activity and high primary hydroxyl content

    本產品系新型催化劑合成的聚醚,其特點是不飽和度低,分子量分佈窄,活性高,伯羥基含量高。
  3. It was found that loop reactor could narrow the molecular weight distribution, increase the content of carbonate in product molecules and improve catalyst efficiency

    研究發現,環流反應器能夠使產品分子量分佈變窄,提高產品中碳酸酯基團含量及催化劑的催化效率。
  4. Using 80 % dipropylene glycol and 20 % 1, 4 - butanediol as molecular regulator could also narrow the molecular weight distribution and reduce the amount of smaller molecules in product

    研究還發現分子量調節劑對產品分子量分佈有較大影響,採用混合型調節劑也能夠使分子量分佈變窄並降低小分子物質含量。
  5. The long - branched polyethylenes made from these catalytic systems had the characteristics of low melt point, low density, narrow distribution of molecular weight

    幾種復配體系所得到的聚合物具有熔點低、密度低、分子量分佈窄等特點。
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