concentration 中文意思是什麼

音標 [ˌkɔnsen'treiʃən]
concentration 解釋
n. 名詞 1. 集中。
2. 【化學】提濃,蒸濃,濃縮;濃度;稠密度;【礦物】汰選,選礦,富化。
3. 集中注意,專心。

  1. The greatest activity could be obtained on the condition of 8 % salt concentration, 1 : 20 ratio of abomasums and butter, 30w / cm2 supersonic strength and 40min extraction time

    在食鹽濃度8 ,皺胃與提取液比例1 : 15時,用30w cm2超聲強度提取40min ,可獲得最大的凝乳活性。
  2. As the kid chymosin was extracted by the traditional way and the buffering way at different ph values, its activity mainly depended on the salt concentration, extraction time and temperature, the ratio of buffer and abomasums and extraction times

    用傳統方法和不同ph緩沖液方法提取羔羊凝乳酶時,食鹽濃度、提取時間、提取溫度、提取液與皺胃比例、提取次數對凝乳活性有重要的影響。
  3. With the increasing salt concentration, milk - clotting activity became higher and higher, then reached its peak, and then decreased gradually ; in the early extraction, the speed was quick, the milk - clotting activity was increased obviously. after it amounted to the maximum, the activity became steadily lower steadily ; the increasing temperature in extracting could improve the extraction activity, but too high temperature could result in the denaturation and inactivation ; the greater the ratio of abomasums and butter and was, the quicker speed was when the enzymes was drawn out, and after extracting for twice, most of the enzymes in the abomasums could be drawn out

    隨著食鹽濃度增大,凝乳活性逐漸提高,當達到一定濃度后,凝乳活性又逐漸降低;在提取初期,提取速度較快,凝乳活性明顯提高,當提取達到最大值后,凝乳活性又逐漸下降;隨著提取溫度的升高,凝乳活性逐漸增大,但溫度過高時,會導致酶變性失活;隨著提取液與皺胃比例的增大,酶溶出速度加快,提取次數越多,皺胃中酶提取越充分,提取2次后,皺胃中絕大部分酶被提出。
  4. In benzene or ethyl acetate solution rates increase linearly with methyl methacrylate concentration.

    在苯或乙酸乙酯溶液中其衰減速度隨甲基丙烯酸甲脂濃度呈直線地增大。
  5. First, to construct a recombinant plasmid pegfp - c - fos with c - fos promoter and egfp, and then transfect it into human bladder transitional cell carcinoma biu - 87 cell ; second, based on the changes of the expression of gfp in the biu - 87 cell which induced by the aconitine and hab toxins, the concentration of the hab toxins could be detected

    目的:構建一個含c - fos啟動子和egfp報告基因的pegfp - c - fos重組質粒載體。體外轉染膀胱癌biu - 87細胞后,利用赤潮毒素作用后細胞表達綠色熒光蛋白的變化來檢測赤潮毒素,初步建立一種以細胞為基礎受體水平的赤潮毒素檢測方法。
  6. It has been demonstrated that complement activating and cr2 cross - linking on b lymphocytes set up a bridge between innate and acquired immunity. the interaction of c3 and cd21 on b lymphocytes will benefit initiating immune response and regulating primary antibody response. cd21 / cd35 is important in the process of antibody avidity maturing, this is critical to b lymphocyte activation especially in the state of low antigen concentration

    現己證實補體的活化以及b細胞表面crz的交聯在先天和獲得性免疫之間架起了重要的橋梁,表現為c3與b細胞cdzi的相互作用有利於啟動抗體應答反應,並對初級抗體應答反應有調節作用: cdzi cd35對于抗體的親和性成熟具有重要作用,在抗原濃度低的情況下,對于活化b細胞是至關重要的,而且mlgm (交聯有利於特異的低親和性b細胞對t細胞依賴性抗原和t細胞非依賴性抗原產生免疫應答。
  7. So only with the best combination of dispersants concentration, dispersing time, ph, temperature and adscititious ions, steady dispersing system can be obtained

    只有在分散劑濃度、分散時間、 ph值、溫度和外加離子濃度的最佳組合條件下,才能得到穩定的分散體系。
  8. Through preparative experiments and optimized experiments on cu ~ zn ultrafine powders that are prepared by the method of thermal spray and ball milling, the author finds that dispersants concentration, dispersing time, ph, temperature and adscititious ions have significant influences on dispersing effects

    西安理工大學碩士學位論文通過對熱噴塗球磨法制備的超細銅鋅粉的分散性進行預試驗和優化試驗,發現分散劑濃度、分散時間、 ph值、溫度和外加離子濃度對分散作用效果有重要影響。
  9. A method to calculate quantitatively the adsorption volume or adsorption space of per mass of adsorbent derived from both the adsorbed molecule volume and the maximum adsorbance of a solute in an adsorption isotherm under a given experimential condition is presented firstly for a solid / liquid adsorption system of the solute in a dilute aqueous solution. this method is suitable for not only mono - layer adsorption, but also mani - layer adsorption and micelle adsorpion of surfactant constructed by hydrophile and lipophile groups. therefore, the surface concentration of the adsorbate, cs, deduced from the adsorption volume is possessed of the meaning of true concentration, and the value of the patition coefficient of the adsorbate between solid and liquid phass, p, attained by the cs and the c, solution concentration of the adsorbate, can be accurate. the foregoing a set of calculations are presented for the solid - liquid adsorption systems consisted of the wool fiber and separately dodecyltrimethyl - ammonium bromide ( dtab ) and hexadecyltrimethyl - ammonium bromide ( ctab ) in this paper. this provides a strong basis for adsorption thermodynamic investigation of adsorbate

    對稀溶液中溶質的固/液吸附體系,首次提出了根據吸附分子體積和實驗條件下吸附等溫線中的最大吸附量計算單位質量吸附劑的吸附體積或吸附空間的方法.此法適用於單層吸附,也適用於多層吸附和具有親水親油結構的表面活性劑分子的膠團吸附.由此,吸附質的表面相濃度cs具有真實濃度的含義,相應地,計算得到的溶質的固/液分配系數p就有了準確值.分別計算由溴代十二烷基三甲銨( dtab )和溴代十六烷基三甲銨( ctab )與羊毛纖維構成的液/固體系分配系數等,為溶質吸附的熱力學研究奠定了基礎
  10. Adsorption is the concentration of one substance very near the surface of another.

    吸附作用是一種物質非常接近地集中在另一種物質的表面。
  11. Extravagant mass ransom schemes, and proposals to bomb nonmilitary targets like concentration camps run afoul of major war-making policies.

    支付高昂的集體贖金計劃,以及轟炸集中營這一類非軍事目標的建議都是與主要作戰方針格格不入的。
  12. Cause analysis of gas concentration reduction in face air current during reversal mine ventilation

    礦井反風時工作面風流中瓦斯濃度降低的原因分析
  13. She immediately became involved in an underground movement aliyah bet, which secretly organized the expatriation to the promised land of jews who had escaped nazi concentration camps

    剛來到羅馬,她便參加了一個猶太地下移民組織,秘密幫助納粹集中營里倖存下來的猶太人回到「應許之地」 ? ?巴勒斯坦一帶。
  14. The pd pre - concentration method by alkalescence anion resin and determination of trace pd by gfaas

    石墨爐原子吸收測定痕量鈀
  15. The results suggested that the ph value, the type of monomers, the type, concentration and surface properties of inorganic nanoparticles, the type and concentration of emulsifier have a great influence on the encapsulating emulsion polymerization and the obtained latex stability. if selecting cationic emulsifier ( ctab ), low water soluble monomers ( such as ba, st ) and hydrophobic nano - silica, the inorganic nanoparticles would be encapsulated by polymers through ultrasonic irradiation successfully under alkalescent condition

    系統研究了ba 、甲基丙烯酸甲酯( mmal苯乙烯舊t )以及它們的共聚體系在超聲輻照作用下包裹聚合的主要影響因素,結果表明: ph值、單體的種類、無機納米粒子的種類、濃度及表面性能、乳化劑的種類及濃度等對超聲輻照包裹乳液聚合以及復合體系的穩定性有較大的影響。
  16. Hypokalemia itself may produce a metabolic alkalosis, since an increase in excretion of hydrogen ions occurs when the concentration of potassium in the tubular cells in low

    低鉀血癥可引起代謝性堿中毒,因為當在腎小管細胞中鉀離子濃度降低時氫離子的排泄就增加了。
  17. Contains high concentration of allicin and selenium, both compounds are known to support healthy cardiovascular and immune systems

    尤其所含allicin蒜辣素及selenium硒能確保心血管健康及維系健全的免疫功能。
  18. The cost for the deposition of the waste depends also upon the volume of the storage cavities and the maximum allowable radioactive concentration of the waste.

    廢料處理費用還取決于貯存空穴的容積和允許的廢料最大放射性濃度。
  19. The altitude of the peak concentration was lowest in the summer.

    在夏季,峰值濃度的高度為最低。
  20. Workplace air. x - ray determination of the concentration of crystalline silica alveolate deposit. sampling by means of rotary cup device

    工作場所空氣. x射線測定結晶二氧化硅蜂窩狀沉積物的濃度.用轉動杯裝置取樣
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