percent composition 中文意思是什麼

percent composition 解釋
組成百分比
  • percent : 百分的
  • composition : n 1 作文(法),作詩(法),作曲(法);作品,文章;樂曲;文體,措辭。2 編制;結構,構造,組成,...
  1. Moreover, only about 20 percent of the magma erupted at etna has a chemical composition similar to that of a rift - zone volcano

    此外,埃特納噴出的巖漿,其化學成份只有大約20 %和張裂帶的巖漿相似。
  2. The amino acid composition of collagen is very special, including 30 percent glycin, and 25 percent of praline and hydroxyproline

    膠原占健康人體蛋白質總量的25 % 30 % ,相當于體重的6 % ,是人體內含量最多的蛋白質。
  3. Beverage alcohol advertising and marketing should be placed in broadcast, cable, radio, and print communications only where at least 70 percent of the audience is reasonably expected to be above the legal purchase age ( determined by using reliable, up - to - date audience composition data )

    只有在合理認為至少有70 %的受眾超過合法買酒年齡的地方(使用最新、可靠數據) ,才應該促銷酒,例如有、無線電視,廣播電臺及印刷媒體。
  4. In this dissertation, the author analyzed plant biodiversity in yunmengshan forest region with field survey on plant species and forest vegetation, the results show that : the vascular plants in yunmengshan forest region include 548 species ( variation ) which belong to 319 genera, 98 families, the flora geographical composition are complex, the dominant characteristics of flora are temperate zone plants which account for 55 percent, herbaceous species occupy 75 percent exclusively. evaluating the threatened hierarchy of plants in yunmengshan forest region, the results show that the number of critically endangered species is 7, endangered species isll, vulnerable species is 53, lower risk species is79, safty species 376

    本文在對雲蒙山林區的植物物種、植被進行調查的基礎上,進行植物多樣性分析,研究結果如下:雲蒙山林區共有維管束植物98科319屬548種和變種,地理成分復雜,包括中國全部屬的15個分佈區類型,區系組成以溫帶成分為主,佔55 ;生活型譜中,草本植物種類占絕對優勢,比例為75 . 3 ;通過瀕危評價,得出雲蒙山林區植物極危種7種,瀕危種11種,漸危種53種,敏感種79種,安全種376種。
  5. The influence of nano - al2o3 on the sintering and the properties of the si3n4 ceramics was researched in this paper. the samples with different amount of nano - al2o3 were obtained by using pressureless sintering at 1600, 1650, 1700 in the nitrogen atmosphere. the microstructure and the composition of the ceramics were determined by the means of x - ray, sem, micro - hardness meter etc. it is show that the sisty ceramics can be densified at 1650c to % percent of the theory density through the addition of nano - al2o3 ( the value could be 90 percent by other technique ). the crystalline growth of the cylindrical - si3n4 and the ratio of its longitude to its diameter are increased with the addition of nano - al2o3. a uniform microstructure and an fined crystal as well as more sialon phases can be obtained in the si3n4 ceramics through the addition of that

    實驗結果表明:在碳管爐中、氮氣保護下進行燒結,添加劑為納米al _ 2o _ 3粉末時,由於納米粉末的高活性、高燒結驅動力,在1650就可使si _ 3n _ 4完全地燒結,並使其緻密度可達理論密度的96以上(比其它工藝高6左右) ;同時,納米al _ 2o _ 3地加入大大促進了長柱狀? si _ 3n _ 4的生長和發育及柱狀晶長徑比的提高,使微觀結構均勻、細化,形成了更多力學性能優異的固體? sialon相,減少了不利於陶瓷材料性能的晶間玻璃相,凈化了晶界。
  6. The bank said a rebound in investment in early 2005 raised concern among analysts, but the trend remains one of a slowdown, and the changing composition should give some comfort to policy makers that the policies introduced in 2004 are working. moreover, the number of new projects declined in january - february, with a 6. 6 percent fall in new investment volume

    神野客車高度重視農村客運市場,公司將投放更多的技術力量和經理在新產品的研發上,公司在現有車型的基礎上,不斷豐富城鄉客車產品系列進而形成一個梯隊,提供更多的可選性以滿足不同地區農村客運的要求。
  7. A bath composition, a brightener and the operating conditions have been determined through systematic research. the optimum ni - fe alloy coating contains 3 to 5 percent fe

    該新電鍍工藝經測定,鍍液及鍍層性能都很理想,而最適宜的鍍層是含鐵3 5的ni - fe合金。
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