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研究条件
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  research conditions
     The research conditions and devices for pressure filtration test are introduced.
     介绍了加压过滤试验的研究条件和装置。
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     During the development of social science of sport,there exists many problems of which is the research conditions must be improved.
     体育社会科学发展存在的主要问题是研究条件有待改善等。
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     Because of the limits of writer's research ability and research conditions, the discussion of culture's, psychology's, society's influences are not included in this thesis, this is the defect of this thesis.
     由于笔者研究能力及研究条件所限,未涉及文化、心理、社会等等其他因素对词语创新的影响,这是本研究未尽之处。
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     Through theoretical analysis and testing estimating formulas are obtained under research conditions.
     通过理论分析和模型实验得出了研究条件下的估算公式。
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     Under the research conditions described in this paper,the actions of GTAW welding arc property,fluid flow in pool and solidification process are changed due to the applied longitudinal intermittent alternative magnetic field,which produced by the single excitation coil above or under the pool,so the weld formation changes.
     认为在本研究条件下 ,无论处于熔池下方还是上方的单励磁线圈产生的外加纵向磁场都使GTAW焊接电弧特征、熔池行为和结晶过程发生了变化 ,从而导致焊缝成形的改变 ;
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  “研究条件”译为未确定词的双语例句
     According to this study, fc=0.50~0.60 and n=12~32 were the best filter parameters for clinical brain SPECT image reconstruction.
     在本研究条件下,临床脑断层图像重建最佳滤波参数为fc=0.50~0.60,n=12~32。
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     Results have made know: (1) The changes of protein content secreted by CXJZ95-198 in the five media glucose mannose xylan mannosan and pectin were 1.28mg/ml, 1.17mg/ml, 0.94mg/ml, 0.75mg/ml and 0.73mg/ml.
     在本研究条件下,得到如下结论:(1) CXJZ95-198菌株在以葡萄糖作为碳源的培养基中蛋白质含量变化最大,达到了1.28mg/ml,其次依次为甘露糖、木聚糖、魔芋粉和果胶培养基,分别为1.17 mg/ml,0.94 mg/ml,0.75 mg/ml,0.73 mg/ml;
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     About 30% TP were removed after OSDPS purification and removal rate of TP varied between 0.01~0.02g.
     在该研究条件下,TP去除率接近30%,去除速率为0.01~0.02 g.
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     Methods:From Jan 2004 to Dec 2005,121 valid patients with oesophagus malignant tumor or lung cancer were treated with routine radiotherapy(RT)by 15 MV X-ray,DT60~68Gy,30~34 fractions,within 42~46days.
     方法:2004年1月~2005年12月,121例符合研究条件的食管癌及肺癌患者接受了15MVX线常规胸部照射,DT60~68Gy/30~34f/42~46d。
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     A set of electronic control VNT system has been designed while researching the matching of CA6DE1-21K DI TCA diesel engine and GT35V turbocharger in this dissertation.
     本文在大柴CA6DE1-21K增压中冷柴油机匹配霍尼韦尔GT35V增压器的研究条件下,开发了一套VNT喷嘴截面积开度电子控制系统,并完成了电控系统的硬件和控制软件设计,最后在发动机台架上进行了试验研究。
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     The copolymerization conditions were studied.
     研究了共聚条件.
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     Study on Coherent Condition
     相干条件研究
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     RESEARCH
     研究
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     Two commercial reactive dyes, C.
     研究了C.
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     Therein A Let Z be a Banach space, / 6 C(X. R) , satisfying the P. S. condition, Cbe the unique critical value of / in [c, b] C R suppose that all the comsected component of K, are isolated points.
     S. 条件,c是f在[c,b](?)
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  research conditions
A detailed analysis of the research conditions of original works has shown that the efficiency of bioremediation of PCB-contaminated matrices strongly depends on the character and degree of contamination.
      
However, most studies involved in these meta-analyses are conducted in research conditions and are not representative of the treatment effectiveness in everyday clinical practice.
      
We believe there is a gap between the so-called efficacy studies in research conditions and the effectiveness studies in clinical practice and we discuss how clinical and research practice could be brought together.
      
So surgical reconstruction of function of the upper extremity in tetraplegia should be improved also in Germany in cooperation with other European centers and under research conditions.
      
However, even in diabetes centres and under research conditions intensification of insulin therapy may substantially increase the risk of severe hypoglycaemia.
      
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差不多所有中国海港的进港航道及内河航道,每年都有大量的回淤。它引起了大量的紧张的疏浚维持工作。最近即将到来的中国出入口货运量及船舶周转率的巨大发展,要求增加现有港口的水深并修建许多新的港口。此外,大型港口庞大的货运量,要求在一年中任何天,任何小时,都能保证进港。这一般要求重新加深一些航道,而水深的增加,以及由它所引起的航道的增长,使每年的疏浚维持工作量,比现在更大。因此,必须在现在就预先采取措施,以便寻求防止中国已建和未来港口回淤的最好方法。在欧美资本主义国家里,防止回淤问题的研究进行了75年(1850—1925),仅在1920年之后,在一些大型港口中,问题得到了成功的解决,而大多数的港口,解决该问题的尝试没有成功。只是当对于回淤及海底地形总的动态,进行了经常性的,足够精确的多年的观测,并用水文计算及水工试验的方法加以综合的研究条件下,问题始能获得成功的解决。但这问题个别的成功经验,没有总结。解放前设计中国主要港口(塘沽,上海,营口,黄埔)的外国人,没有组织为了正确管理港口所必需的经常性的对水流,波浪,泥沙等特性及建筑物本身(航道,导堤情况的观测工作。这些观测,只在最近几年才组织起来,而且完成得远...

差不多所有中国海港的进港航道及内河航道,每年都有大量的回淤。它引起了大量的紧张的疏浚维持工作。最近即将到来的中国出入口货运量及船舶周转率的巨大发展,要求增加现有港口的水深并修建许多新的港口。此外,大型港口庞大的货运量,要求在一年中任何天,任何小时,都能保证进港。这一般要求重新加深一些航道,而水深的增加,以及由它所引起的航道的增长,使每年的疏浚维持工作量,比现在更大。因此,必须在现在就预先采取措施,以便寻求防止中国已建和未来港口回淤的最好方法。在欧美资本主义国家里,防止回淤问题的研究进行了75年(1850—1925),仅在1920年之后,在一些大型港口中,问题得到了成功的解决,而大多数的港口,解决该问题的尝试没有成功。只是当对于回淤及海底地形总的动态,进行了经常性的,足够精确的多年的观测,并用水文计算及水工试验的方法加以综合的研究条件下,问题始能获得成功的解决。但这问题个别的成功经验,没有总结。解放前设计中国主要港口(塘沽,上海,营口,黄埔)的外国人,没有组织为了正确管理港口所必需的经常性的对水流,波浪,泥沙等特性及建筑物本身(航道,导堤情况的观测工作。这些观测,只在最近几年才组织起来,而且完成得远未达到现代科学技术的水平。因此,为了将来拟定中国港口的改建和发展的总计划,必须立刻开始根据统一的方法,对海港水文特征及回淤过程,进行细致的研宄,并将主要的野外观测工作和辅助性的实验室研究工作结合起来。最近几年出现的研究泥沙特性的新方法,使我们有可能,利用新的理论,组织回淤问题质和量的研究。如果这些工作大规模进行,那么就可能在几年内弥补数十年缺乏观测资料的缺陷。依上所述,本文简略地谈谈苏联及一些资本主义国家在防止回淤问题方面的经验。结论中提出了12条互相联系而组成一个综合体的具体建议。这些建议的实现,将保证在已建的中国港口中,合理地组织与防止回淤的工作,和正确的设计未来的港口。

Considering the experimental methods used and results obtained by previous investigators on the preparation of silicon carbide by gaseous cracking, we have performed our experiments in a similar carbon plate resistance furnace in an atmosphere of hydrogen, argon or nitrogen at temperatures from 1400 to 2200℃. The vapor reacting agents used are either SiCl_4,CH_3SiCl-3, (CH_3)_3SiCl or the mixture of toluene and SiCl_4 or (CH_3)_3SiCl。Having examined carefully under polarising microscope, we revealed with no...

Considering the experimental methods used and results obtained by previous investigators on the preparation of silicon carbide by gaseous cracking, we have performed our experiments in a similar carbon plate resistance furnace in an atmosphere of hydrogen, argon or nitrogen at temperatures from 1400 to 2200℃. The vapor reacting agents used are either SiCl_4,CH_3SiCl-3, (CH_3)_3SiCl or the mixture of toluene and SiCl_4 or (CH_3)_3SiCl。Having examined carefully under polarising microscope, we revealed with no exception that all of the crystal grains of silicon carbide grown over the above-mentioned temperature range contain skeletons of alpha-silicon carbide platelets, with beta-silicon carbide forming a matrix. Intergrowth of the C planes of alpha-silicon carbide with beta-silicon carbide was observed. The twinning angles of the C planes in alpha-silicon carbide crystal were determined to be 37.3°and 70.2°By calculating the temperature dependence of the free energy change of the possible chemical reactions with SiCl_4 in silicon carbide formation, it has been shown that these reactions can be grouped into three catagories: (1) the decomposition of SiCl_4, (2) the decomposition of hydrocarbons or the syntheses of simple hydrocarbons, and (3) various possible reactions leading to silicon carbide formation. The reactions with methyl chlorosilanes as reacting agents have also been discussed.As a consequence of this investigation, the problem of controlling the crystalline modification during the synthesis of silicon carbide monocrystals by the gaseous cracking method is emphasized, and it is believed that the better solution of this problem would be of no less importance than to increase its crystal size or purity.

本文考虑了前人的研究条件和结果之后在类似的碳片炉内进行了裂化法合成碳化硅的实验,反应试剂为SiCl_4、CH_3SiCl_3、(CH_3)_3SiCl或SiCl_4及(CH_3)_3SiCl与甲苯的混合蒸气,气氛为H_2、Ar或N_2,温度为1400~2200℃。岩相法观察表明,在实验温度范围内制备的碳化硅晶粒内都包含α-SiC晶体的片状骨架,它们往往沿C画与β-SiC相间互生:α-SiC晶架的C面孪晶角为37.3°和70.2°;β-SiC则形成基体物质。 化学反应的自由能变化与温度的依赖关系的计算表明,裂化法的化学作用可以概括为以下三类:(1)SiCl_4的分解反应;(2)碳氢化合物的分解或简单碳氢化合物的介成反应;(3)各种可能合成碳化硅的反应。此外,也讨论了氯化硅烷反应剂系统的裂化反应。 根据实验结果,提出了裂化法生长β-SiC单晶的晶型控制问题,并认为解决这;一问题的重要性应不亚于晶体的大小与纯度。

Comparative studies on these compounds have been carried out in our laboratory with the UV difference spectrum technique. Eesults show that all three have association changes depending on pH and, their association abilities are in the order Insulin, DOI, DPI. This indicates that hydrophobic interaction plays a more important role in mol ecular association than the β-pleated sheet structure. The fact that association abilities lie in the order Insulin,DOI, DPI implies that the β-pleated sheet structure contributes...

Comparative studies on these compounds have been carried out in our laboratory with the UV difference spectrum technique. Eesults show that all three have association changes depending on pH and, their association abilities are in the order Insulin, DOI, DPI. This indicates that hydrophobic interaction plays a more important role in mol ecular association than the β-pleated sheet structure. The fact that association abilities lie in the order Insulin,DOI, DPI implies that the β-pleated sheet structure contributes also to the stability of the dimer.Results of solvent perturbation show that at various pH (1.8, 3.5, 7.5) and on concentration of 1 mg/ml, a dimer is the unitary species and insulin exists in the form of dimers. On the other hand, at pH 1.8 and pH 7.5, DPI, DOI exists in the form of monomer. At pH 3.5 association of DPI and DOI involves the change of a tyrosine residue environment from being exposed to buried. In contrast to DOIh as, at pH 3.5, a tyrosine residue lying in a crevise. This residue is only perturbable by D_2O but not by DMSO. Judging from the crystal struture modes, this residue is presumable A_(19) tyrosine.These results show that the dependence of associational properties and difference spectra to pH and concentration change in DPI and DOI has a mechanism differeat from that of native insulin. In insulin, molecular association does not involve changes in exposed fraction of tyrosine. The process of association of dimers into hexamers is concomitant to changes in pH and concentrations and the gemeration of pH and difference spectra are due to the formation of A_(14) tyrosine hydrogen bond between dimers during the process of association into hexamers. On the other hand, the process of association of DPI, and DOI is actually from monomeric to dimeric or even forms of further association and the genration of their pH and concentration difference spectra is related to the change of tyrosine residue from being exposed to buried.

用三种紫外差光谱技术对Ins、DPI、DOI分子缔合行为及酪氨酸微环境进行了比较研究。结果显示DPI、DOI与Ins一样,存在着随pH与浓度的缔合。表明与β-折迭结构相比,疏水相互作用在分子缔合中起主要作用。但从Ins的缔合能力较DPI、DOI强,可认为β-折迭对维持二体的稳定仍有重要作用。溶剂微扰结果显示,在1 mg/ml所研究的三个pH(1.8,3.5,7.5),Ins存在的最小单位是二体,而DPI、DOI在pH 1.8,7.5主要以单体形式存在,但在pH 3.5则呈现强烈缔合并导致一个酪氨酸由暴露到埋藏的变化。DPI有一个位于缝隙中的酪氨酸残基,它仅能为重水微扰,而不能被DMSO微扰,推测它是A_(19)酪氨酸。微扰研究还表明Ins与DPI和DOI在缔合及pH、浓度差光谱产生的机理上有所不同。在所研究的条件下,Ins缔合是从二体到六体的过程,这一过程仅导致二体间A_(14)酪氨酸氢键形成,并不涉及酪氨酸暴露与埋藏的变化。而DPI和DOI则是从单体到二体(或更高聚体)的过程,这一过程涉及酪氨酸由暴露到埋藏的变化。pH滴定的结果未发现Ins、DPI、DOI酪氨酸滴定行为的不同。

 
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