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值较
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  value is
     The results show that the optimum pH value is 9, and the obtained powder mixture of SiC/(Al(OH) 3+Y(OH) 3)has higher ζ potential , good dispersion and homogenous coating.
     结果表明 ,当溶液的pH =9时 ,SiC/(Al(OH) 3 +Y(OH) 3 )复合粒子表面的 ζ电位值较高 ,复合粉体的分散性和包覆效果也较好 .
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     The Q values are high in Haiyuan and Lixian area, the mean Q value is 194 and 957 respectively.
     海原及礼县Q值较高,其平均Q值分别为194和957,迭部Q值较低,其平均Q值为48。
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     Conclusion The values of R,G,B,S and I of sublingual collaterals colour are lower and H value is higher in the patients with lung cancer.
     结论肺癌患者舌下络脉颜色的R、G、B、S、I分量值均较低,而H值较高。
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     The simulated water potential productivity fluctuates between 2.018~(17.521) t/hm~2,the average value is 7.7 t/hm~2.The average water stress day is only 10.2 days yearly,the water potential productivity is high and steady-going during first 5-years.
     30 a苜蓿水分生产潜力模拟值在2.018~17.521 t/hm2,平均值为7.7 t/hm2。 模拟试验前5 a,年均干旱胁迫日数较少,仅为10.2 d,苜蓿生水产潜力值较高且波动平稳。
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     An anomalous potential jump of Fe3+-Fe2+ couple was observed, when [Fe3+]/[Fe2+] value is relatively high. The occurrence of anomalous potential jump depends on [Fe3+]/[Fe2+] value and surface condition of Pt electrode.
     当[Fe~(3+)]/[Fe~(2+)]值较高时,Fe~(3+)-Fe~(2+)电对电位会出现异常的飞跃,该飞跃与[Fe~(3+)]/[Fe~(2+)]值及Pt电极的表面状态有关。
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  “值较”译为未确定词的双语例句
     Result:①The endothelin-1 levels and values of TIMI-FC in positive group were increased significantly compared with those in negative group and control group (P<0.01).
     结果:①阳性组ET-1浓度和TIMI-FC值较阴性组和对照组均增高(均P<0.01);
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     WST-1 methods showed that OD value with 600J/m2 UVB irradiation to HaCaT cells for 4 hours was lower than 0J/m2 group.
     WST-1法显示600J/m2紫外线照射HaCaT细胞4h后OD值较0J/m2组低;
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     As for soybean productivity,the nugget was relatively big,and accounts for 41.3% of the sill.
     大豆现实生产力的块金值较大,占基台值的41.3%,表明对于大豆而言,人为控制因素的作用更显著;
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     The results indicated that the soil pH value was dominated by acid(pH4.5~5.5) and neutrality(pH6.5~7.5),and had increase tendency as compared with natural soils;
     结果表明,广州公园绿地土壤以酸性(pH 4.5~5.5)和中性(pH 6.5~7.5)占的比例高,部分土壤呈碱性,土壤pH值较自然土壤有增高的趋势;
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     It is said that wool/polyester blended fabric modified by G1 reagent can be dyed at normal pressure with disperse dyestuffs,the dyeings feature high K/S value,and good fastness to rubbing and soaping above 3 levels.
     结果表明,经改性剂G1改性的毛涤织物,可用分散染料在常压下染色,且染色K/S值较高,皂洗和摩擦牢度均在3级以上。
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     D.
     D低。
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     The Q value is diversities between individuals.
     Q个体差异大。
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     Estimation of i-Value
     i-估计
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     The influence of structure of the chiral aminoalcohol on the enantioselectivity was studied.
     的影响;
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  value is
This value is a good stability bound of Fourier frames because it covers Kadec's 1/4-theorem and is better than (see Duffin and Schaefer [3]).
      
Different from rational quadratic Bézier curves, the value is generally related with the location of the ray, and the necessary and sufficient condition of the ratio being independent of the ray's location is showed.
      
One type is the threshold concentration that can promote algae growth, and its value is between 10 and 1 nmol level, or even lower.
      
Results show that in the studied pH value range, the lower the pH value is, the higher is the UV-vis absorbance and the larger is the thickness of the multilayer films.
      
The image is realized by modulating the voltage of under-gate, whose value is less than the cathode voltage, to stop the cathode producing field emission electrons.
      
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The molecular weights of nine fractionated samples of butadiene-styrene copolymer were determined osmometrically in toluene at 25°. Experimental technique for the use of osmometer and the swelling of cellophane membrane in 5—30 pct NaOH solutions have been described. The change of permeability during repeated use of the membrane and its possible deformation during a determination were discussed.π/C vs C plots for the system studied are non-linear, while the experimental data permitted linear extrapolation on...

The molecular weights of nine fractionated samples of butadiene-styrene copolymer were determined osmometrically in toluene at 25°. Experimental technique for the use of osmometer and the swelling of cellophane membrane in 5—30 pct NaOH solutions have been described. The change of permeability during repeated use of the membrane and its possible deformation during a determination were discussed.π/C vs C plots for the system studied are non-linear, while the experimental data permitted linear extrapolation on (π/C)~(1/2) vs C plots to give M_n and A_2 values. The ratio A_2M_n/[η] was found to be a constant, independent of M_n.The[η]-M relation obtained is [η]=1.25×10~(-4)M~(0.78)dl/g in toluene at 30°. The somewhat higher value of a obtained is explained by the fact that previous workers applied linear extrapolation on π/C vs C plots and the possible branching of the samples used was neglected.

1.本文叙述所用渗透计及测定方法,在实验技术方面,討論半透膜對溶剂的透过性在使用中的變化,和在渗透计上半透膜在测定进行中可能有的变形。 2.又曾用九個丁苯橡膠级份的甲苯溶液在25°時作了渗透壓测定,得到的数據π/C对C是非線性的,但是可用(π/C)~(1/2)對C作线性外推,得到M_n和A_2的数值,且A_2M_n/[η]为一常数。 3.從粘度及渗透壓数據,得到: [η]=1.25×10~(-4)M~(0.78)分升/克(甲苯溶液,30°)所得a值较前人测定的为高,并在文中加以詮釋。

In the present papsr, the model experimental investigations of the stability of thin cylindrical shells under the combined action of axial compression and internal pressure are presented. This includes the making of the test cylinders, the description of test apparatus and the testing method and procedure. The test results of 92 cylinders are presented and analyzed. It points out that the baekling loads of axially compressed cylinders can be raised by the action of internal pressure. At the same time, after...

In the present papsr, the model experimental investigations of the stability of thin cylindrical shells under the combined action of axial compression and internal pressure are presented. This includes the making of the test cylinders, the description of test apparatus and the testing method and procedure. The test results of 92 cylinders are presented and analyzed. It points out that the baekling loads of axially compressed cylinders can be raised by the action of internal pressure. At the same time, after the ring shaped buckles formed, further increase of internal pressure will lower the axial buckling load. The effects of end conditions on buckling load are also described. The experimental results of this paper are compared with that of DVL and they are close to each other.Deutsch Versuchsanstalt fur Luftfahrt

本文介绍有关圆柱薄壳受轴压和内压联合作用时稳定问题的模型试验研究。包括试件的制作,试验设备,试验方法和步骤等。本文提供了92个试件的试验结果,并对结果进行了分析。指出了内压对提高受轴压圆柱薄壳临界力的作用,但同时指出随着环形波的出现,进一步提高内压反而会使临界轴压降低。还指出了两端支承情况对临界力的影响。本文试验结果与DVL*的试验值是较接近的。

A new and simple method for bulk isolation and preparation of serum β-lipoprotein by pure chemical means was presented. By taking advantage of certain properties of the β-lipoprotein-dextran sulfate complex it was found possible to avoid ultracon- trifugation altogether.It was found that macromolecular dextran sulfate could interact specifically at neutral pH with serum β-lipoprotein to form an insoluble complex and that it did not react with serum α-lipoprotein or other serum proteins. The complex formed could...

A new and simple method for bulk isolation and preparation of serum β-lipoprotein by pure chemical means was presented. By taking advantage of certain properties of the β-lipoprotein-dextran sulfate complex it was found possible to avoid ultracon- trifugation altogether.It was found that macromolecular dextran sulfate could interact specifically at neutral pH with serum β-lipoprotein to form an insoluble complex and that it did not react with serum α-lipoprotein or other serum proteins. The complex formed could be rendered soluble by increasing the ionic strength of the medium. The loosely combined macromolecular dextran sulfate was then removed by precipitating it with barium acetate, thus leaving the free β-lipoprotein in solution.The purity and properties of the isolated β-lipoprotein was characterized by means of paper electrophoresis, agar gel electrophoresis and immunoelectrophoretic and ultracentrifugal analyses. It was found that the isolated β-lipoprotein solution no longer containe an appreciable amount of dextran sulfate upon detecting the polyanions with acid polysaccharide dyes. On agar gel electrophoresis there appeared only one spot whose position corresponded to α_2-globulin. On paper electrophoresis there was revealed only one band corresponding to that of β-globulin of whole serum, whether it was stained with protein or lipid dyes. Upon ultracentrifugation with a maximum speed of 50,000 rpm it could float in a high density medium of 1.063g/ml. All the above data suggest that the isolated β-lipoprotein is quite pureUltracentrifugal analysis showed that the lipoprotein contained mainly the β-lipoprotein of S_f 2-6, but there was also a small amount of low density lipoprotein of higher S_f values. Immunoeletrophoretic analysis showed, however, only one precipitating arc with antiwhole serum, indicating that β-lipoproteins of different S_f values may have similar immunochemical properties.The newly prepared β-lipoprotein is transparent and light yellow in color and has 2 to 3sorption peaks in visible light, between 410mμ to 500mμ, and one in ultraviolet light at 275mμ. It can be stored at 2° to 4℃ for 14 days or concentrated at 4℃ without the formation of any precipitate.Finally, the characteristics of dextran sulfate-β-lipoprotein complex in concentrated salt solution was studied by stainning the protein and polyanions with Azo-carmine and Alcian Blue dyes on the same paper strip after electrophoresis. It was found that the complex was still in a state of combination and not at all dissociated.

(1)本文利用大分子D.S.与β脂蛋白复合物的性质对血清β脂蛋白的大量分离及其某些性质进行了研究。(2)自制D.S.可以在中性pH与人血清β脂蛋白形成不溶的复合分子。该复合分子可以溶解于12%NaCl溶液中,并可用纯化学的方法分离,释放自由β脂蛋白。(3)该脂蛋白溶液经纸上电泳、琼脂凝胶电泳及琼脂免疫电泳的鉴定均证实为纯净的β脂蛋白,只有一种免疫性,不再含有可觉察出的D.S.。经超速离心分析,主要含有S,2—6的低密度脂蛋白及少量S_f值较高的β脂蛋白。(4)新鲜的β脂蛋白为草黄色液体,平均浓度为1克/100毫升,在可见光400—500mμ波长有三个明显的吸收峰,在紫外光275mμ波长有一吸收峰。于2℃冰箱保存二周或在4℃浓缩均不致产生沉淀。(5)本文对D.S.-β脂蛋白复合分子的性质进行了初步研究,并对其结合方式作了简单的讨论。(6)本文提供了一个简单、温和、不用长时间超速离心而可大量分离和浓缩血清β脂蛋白的化学方法。

 
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