powder fraction 中文意思是什麼

powder fraction 解釋
粉末級別
  • powder : n 1 粉，粉末。2 （搽臉的）香粉；牙粉；發粉。3 （一服）藥粉；粉劑；散。4 塵土，泥屑；雪糝。5 炸藥...
  • fraction : n. 1. 小部分，碎片，片斷。2. 一些，一點兒。3. 【化學】分餾，分層，分級。4. 【宗教】聖餐麵包分切式。5. 【數學】分數。
  1. More than 90 % of mercury and selenium were in the indissoluble fraction of the liver ( liver powder )

    本文首次對肝臟不溶部分蛋白質結合汞硒形態和化學性質進行了研究。
  2. According to the polarity, the residue was isolated with petroleum ether, chloroform, ethyl acetate, and n - buoh, respectively. the n - buoh fraction, confirmed as neuroactive component, was subjected to sephadex lh - 20 column chromatography to provide an extract fraction, as a buff powder, which could induce neurite outgrowth in rat pheochromocytoma pc12 cells in a dose - dependent manner up to 50 mg / l

    將菟絲子乾粉用75乙醇浸泡后，減壓蒸干后得到褐色漿狀物，經石油醚、氯仿、乙酸乙酯、正丁醇萃取，經柱層析后，再用葡聚糖凝膠對有效成份進一步純化，獲得了菟絲子中能誘導pc12細胞分化的活性組分。
  3. The particle size can be controlled by adjusting processing conditions such as milling time, rotating speed of milling pan, static pressure between milling pans and milling temperature, etc. average article size of the powder reduced to micrometer scale in relatively short time and a fraction of which even reached nano scale

    利用聚丙烯和尼龍6之間約60oc的熔點差，在200oc左右加ippch6復合粉體，可以使pa6保持固體超細粒子狀態， pp則熔融成為連續相，得到了pa6超細粒子均勻分散的ppch6共混體系。
  4. After adding 0. 12 volume fraction of pt powder, the pyroelectric coefficient of pt / p ( vdf - trfe ) composite film was about 30 % higher and the detective merit was about 21 % higher than that of sensors using pure p ( vdf - trfe )

    12的鈦酸鉛納米陶瓷粉粒的摻入，使得pt / p （ vdf - trfe ）復合膜的熱釋電系數值提高了約30 ，探測優值提高了約21 。
  5. There were two reasons for the low gloss of bronze powder. one was the low leafing value and the irregullar orientation of bronze flake in oil. the other was the wide size distribution of the interior pigment, containing a large fraction of small powder ( < 3 um ), which to some extent had a great impact on metallic gloss

    （ 2 ）造成國產銅金粉光澤低的原因是：粉末粒度分佈范圍過寬，小粒徑顆粒（ 3 m ）所佔比例過大，銅金粉在粘結料中的漂浮性低及定向排列差。
  6. Nanosized lead titanate ( pt ) and lead titanate doped with calcium and lanthanum ( pclt ) powder obtained by the sol - gel method was added into vinylidene fluoride - trifluoroemylene [ p ( vdf - trfe ) ] to form nanocomposite to be used as the sensing film of the pyroelectric detector. the experiment results show that after mixing in 0. 16 volume fraction of pclt powder, the pyroelectric coefficient of pttp ( vdf - trfe ) composite film was about 37 % higher than that of the pure p ( vdf - trfe ) film prepared under the same condition, and the voltage figure - of - merit of pt / p ( vdf - trfe ) composite film was about 22. 4 % higher

    用溶膠-凝膠法制備了鈦酸鉛（ pt ）和摻鈣鈦酸鑭鉛（ pclt ）納米粉粒，與聚偏氟乙烯-三氟乙烯（ p （ vdf - trfe ）均勻復合，由於16的摻鈣鈦酸鑭鉛納米陶瓷粉粒的摻入，使得pclt / p （ vdf - trfe ）復合膜的熱釋電系數值提高了約37 ，探測優值提高了約22 . 4 。
  7. Standard test methods for determination of mass fraction of carbon, nitrogen, and oxygen in silicon nitride powder

    測定氮化硅粉末中碳氮氧的質量比值的標準試驗方法
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