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difficult questions
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  疑难问题
     Research on Several Difficult Questions of Civil and Administrative Perverting the Law to Judge Crime
     民事、行政枉法裁判罪若干疑难问题探讨
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     At teaching practice, we can choice the contents of inquiring chemistry experiment from seven different aspects: (a) difficult questions from teaching and learning, (b) difficult proving experiments. .
     具体到教学中,可从八个方面选取实验内容:如从化学教学一与学习中的一些疑难问题中选取,从不易成功的验证性实验中选取等等,这也是木文研究的重点。
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     Research of Difficult Questions on Determination of Crime of Pillage
     关于抢劫罪认定中若干疑难问题研究
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     Students often raise some difficult questions in politics learning.
     针对学生在思想政治课学习过程中经常会遇到一些疑难问题 ,文章归纳总结了教材内容偏难、教材内容存在漏洞、教材有些内容滞后于理论和实践。
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     There are nearly 30,000 words in this article, studying deeply some difficult questions on crime of robbery in four aspects.
     本文行文近三万字,分别从四个方面对抢劫罪若干疑难问题进行了深入研究:
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  难点问题
     Based on the present situation concerning the research on fair value home and abroad, the thesis demonstrates the background and its theoretical basis, puts emphasis on several difficult questions in application fields, and presents its development tendency.
     本文结合国际国内会计界对公允价值的研究现状,阐述了公允价值计量的产生背景和理论基础,重点剖析了公允价值运用中的几个难点问题,同时结合我国公允价值的运用现状,指出了在我国正确采用公允价值计量属性的建议和对策。
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     Authors introduce the principle of designing complex report by using ExcelApplication component and automation technology, explain the method that Delphi manipulates Excel in terms of Excel object hierarchy model, and provide solutions and programming skills of difficult questions.
     论述了利用ExcelApplication组件和OLE自动化技术设计复杂报表的原理,给出了Excel对象的层次模型,结合实例阐述了Delphi操纵Excel的实现方法,并对难点问题提出了解决办法及相关编程技巧.
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     Neutral molecular recognition, especially for neutral micromolecular, such as lower alcohol, simple amid- molecular, is one of the difficult questions in the study of supramolecular chemistry.
     中性分子的识别是超分子化学研究中的难点问题之一。 特别是对于中性小分子,如低级醇,简单的胺分子等,它们能够产生氢键作用的位点少,并缺乏产生疏水作用和π-π堆积作用的接触面,很难与受体分子形成较强的非共价作用。
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     The assemblage of circumstances of Sentencing occurs frequently in the criminal trial practice and it is one of difficult questions in the measurement of punishment.
     量刑情节的竞合在刑事审判实践中经常遇到,是刑罚裁量的难点问题之一。
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     In the course of introducing competition,the efficient pricing of access has been key points and difficult questions in theory and actual operation. This article discusses the problem.
     在引入竞争的过程当中 ,如何制定有效率的接入定价一直是理论界和实际操作当中的重点和难点问题 ,本文就这一问题进行探讨。
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  “difficult questions”译为未确定词的双语例句
     Along with the XML(eXtensible Markup Language) emergence, XML has resolved many difficult questions, and is a good format for data exchange.
     随着可扩展置标语言XML(eXtensible Markup Language)的出现,解决了以前数据交换中许多棘手的问题,是一种好的数据交换中介格式。
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     The secretions and getting rid of technique are major presented, that provided the theory basis and practical txperience for the difficult questions to control Psylla Chinensis in pear orchards.
     梨木虱及其分泌物的危害和综合防治的研究进展. 重点介绍了中国梨木虱分泌物及其破除技术,为解决梨树生产中梨木虱难防治问题提供了理论依据和实践经验.
     When facing difficult questions,38% nurse students turn to books,48% to teachers and 33% to classmates.
     操作正规占57%。 护生有不懂的问题时能经常通过看书、请教带教老师、与同学讨论解决的分别占38%、48%、33%;
短句来源
     However, the molecular foundation of tumor cell's invasion and metastasis remains unknown, which makes invasion and metastasis of tumor cells become the hot and difficult questions of molecular biology on study.
     然而,对肿瘤的浸润和转移的分子基础仍了解较少,这使得肿瘤浸润和转移问题成为分子生物学研究的热点及难点。 目前已知肿瘤的浸润和转移与肿瘤发生一样,不仅有促进基因的激活,还有抑制基因的失活,同时伴有细胞粘附因子的参与。
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     Chemoresistance and metastatic spread are main difficult questions in clinic. So new anticancer methods are continuously explored. Inducing apoptosis in tumor cells through activating TRAIL (tumor necrosis factor related apoptosis inducing ligand ) pathway may be a hot point in NB therapy.
     因此临床上不断探索新的抗肿瘤方法,通过激活肿瘤坏死因子相关凋亡诱导配体(tumor necrosis factor related apoptosis inducing ligand,TRAIL)途径诱导肿瘤细胞凋亡可能成为NB治疗的一个热点。
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  difficult questions
Human resource flexibility and equity: Difficult questions for business, labor, and government
      
To ask whether social medicine still matters may seem to be in poor taste at a symposium to honor Martin Cherkasky, but social medicine has always had the courage to take on difficult questions.
      
Difficult questions remain, however, in designing MCMC samplers for problems exhibiting severe multimodality where standard methods may exhibit prohibitively slow movement around the state space.
      
The static nature of the map view favors applications related to inventory and description, and raises difficult questions of accuracy and interoperability.
      
Official rescue operations do, however, raise difficult questions of an ethical, political and economic nature.
      
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The research work relating to the unisolated mechanical systems with gyroscopic terms plays an important role in theory and in the applications to aeronautical and astronautical sciences. It is a difficult question, that has not yet resolved completely today. In this paper continued to do work [6] firstly, the proof of two lemmas and two theorems has presented a criterion to resolve the instability of an unisolated gyroscopic system. By way of example, we shall utilize our theorems to work out other two...

The research work relating to the unisolated mechanical systems with gyroscopic terms plays an important role in theory and in the applications to aeronautical and astronautical sciences. It is a difficult question, that has not yet resolved completely today. In this paper continued to do work [6] firstly, the proof of two lemmas and two theorems has presented a criterion to resolve the instability of an unisolated gyroscopic system. By way of example, we shall utilize our theorems to work out other two problems of the stability of stable tumbling motions of a Dual-Spin Satellite[9]. Secondly, by means of the stability theorem with respect to partial variables we consider the stability of another unisolated gyroscopic system[10], Lastly, let us give an example associated with the experimental model for the satellite to show its applications to an unisolated gyroscopic system in practice.

陀螺相关非孤立系统的研究工作,不仅是在理论上而且在航空和航天科学的应用上,都具有重要的作用。这是一个比较困难的问题,所以至今还没有完全解决。 本文首先继续[6],通过两个引理和两个定理的证明,提供了解决非孤立陀螺系统不稳定性问题的一种判据。作为例子,利用我们的定理分析解决了“二重自旋卫星”姿态稳定性问题中其他两个问题[9]。 本文第二部分,利用关于部分变量的运动稳定性的定理[10],我们来研究另外一类非孤立陀螺系统的运动稳定性问题。最后,我们举例,通过分析一个卫星试验的力学模型,来说明利用上述方法在实际问题中如何去解决该类非孤立陀螺系统的运动稳定性问题。

The extrapolation of the appendage resistance of twin-screw models to actual ships is a very difficult question, which is not yet, satisfactorily solved. In this paper, the resistance experimental results of two geometrically similar models of a twin-screw icebreaker are presented in both naked hull and provided with shaft bracket conditions. It has been pointed out that there exists appreciable scale effect in the shaft bracket resistance. Three dimensional extrapolator is applied lo the icebreaker models...

The extrapolation of the appendage resistance of twin-screw models to actual ships is a very difficult question, which is not yet, satisfactorily solved. In this paper, the resistance experimental results of two geometrically similar models of a twin-screw icebreaker are presented in both naked hull and provided with shaft bracket conditions. It has been pointed out that there exists appreciable scale effect in the shaft bracket resistance. Three dimensional extrapolator is applied lo the icebreaker models mentioned above. The results thus obtained are compared with those given by βmethod often used in many tanks to take care of the scale effects. Finally, some conclusions are given.

双螺旋桨船模附体阻力的换算方法是一个很困难的问题,尚未满意地得到解决。本文给出一双桨破冰船的两几何相似裸体及带美人架的船模试验结果,指出美人架阻力存在明显的尺度效应。将三因次换算方法应用于上述破冰船模型,所得结果与许多水池经常应用的照顾尺度效应的β法比较,最后给出一些结论。

The part of the universe that has been seen by us is inhomogeneous on the scales from 1010 cm to 1026 cm. The results of recent studies of the three-dimensional distribution of galaxies show that most galaxies are concentrated in superclusters consisting of the strings, groups and clusters of galaxies, and there exist between superclusters giant voids which are almost empty of visible objects[5-8]. The large-scale structure of the universe (the inhomogeneous distribution of galaxies on the scales 10Mpc-102Mpc)...

The part of the universe that has been seen by us is inhomogeneous on the scales from 1010 cm to 1026 cm. The results of recent studies of the three-dimensional distribution of galaxies show that most galaxies are concentrated in superclusters consisting of the strings, groups and clusters of galaxies, and there exist between superclusters giant voids which are almost empty of visible objects[5-8]. The large-scale structure of the universe (the inhomogeneous distribution of galaxies on the scales 10Mpc-102Mpc) seems to be a network consisting of the superclusters and voids. The statistical analysis of the redshift-distribution of quasars suggests that there is periodic component in the large-scale structure. The periodic scale is of the order 102 Mpc[11],[12].On the other hand, Observations of the temperature fluctuation of the microwave background radiation (δT/T≤10-8, on angular scales 10'-180°) indicate that the matter distribution in the universe is homogeneous on larger scales≥103 Mpc.How did the large-scale structure grow from an early homogeneous background? This is one of the most important and very difficult questions in cosmology, because to solve it needs a "well"-model of the universe. At present, the current theories of the formation of the large-scale structure are essentially gravitational clustering theories based on the theories of the expansion of the universe and of density perturbations.Two ideas are worth notice in the adiabatic scenario (assumed that the initial perturbations are adiabatic):1. The idea of the cosmic density wave. The perturbations in the early universe might have formed the physical coherence wavetrain before recombination, and affected the matter distribution after recombination. The upper limit scale of the inhomogeneities in the distribution of the observed galaxies and the periodicity in the redshift-distribution of quasars can be interpreted as the observable vestige of the cosmic density wave[19].2. The idea of the pancake. The non-linear growth of the perturbations after recombination leads to the formation of compressed gas layers - pancakes. The pancakes grew, intersected and finally formed cellular structure (high density sheets, strings in sheets and knots connected by strings). As a result, the network feature in the large-scale distribution of galaxies can be interpreted .

在宇宙的已观测的范围内,从尺度10~(10)cm直到10~(26)cm可视物质的分布是不均匀的。对星系三维分布的研究结果表明,绝大多数的星系集中在由星系的带、群和团组成的超星系团中;而在超星系团之间是几乎没有可视天体的巨洞。宇宙的大尺度结构(在尺度10Mpc—10~2Mpc上星系分布不均匀性的特征)似乎是网状的。对类星体红移分布的统计分析结果表明,在大尺度结构中可能有周期性分布的成分。周期尺度是10~2Mpc的数量级。 在另一方面,关于微波背景辐射的温度起伏的观测(δT/T 10~(-5),在角尺度10′—180°的范围)表明,宇宙中的物质在更大尺度(10~3Mpc)上的分布是均匀的。 大尺度结构是怎样从早期均匀的背景宇宙中增长起来的?这是在宇宙学中最重要也是最困难的问题上一;要解决这个问题需要有关于宇宙的完善的模型。目前所流行的、关于大尺度结构的理论,基本上是以膨胀宇宙论和密度扰动的理论为基础的理论。 在绝热密度扰动(假定初始扰动是绝热的)的方案中,有两种观念特别值得注意: 1,宇宙密度波的观念。在早期宇宙中的扰动有可能在氢复合前形成有物理意义的相干波列;这种波——“宇宙密度波”在氢复合之后有可能影响物质的...

在宇宙的已观测的范围内,从尺度10~(10)cm直到10~(26)cm可视物质的分布是不均匀的。对星系三维分布的研究结果表明,绝大多数的星系集中在由星系的带、群和团组成的超星系团中;而在超星系团之间是几乎没有可视天体的巨洞。宇宙的大尺度结构(在尺度10Mpc—10~2Mpc上星系分布不均匀性的特征)似乎是网状的。对类星体红移分布的统计分析结果表明,在大尺度结构中可能有周期性分布的成分。周期尺度是10~2Mpc的数量级。 在另一方面,关于微波背景辐射的温度起伏的观测(δT/T 10~(-5),在角尺度10′—180°的范围)表明,宇宙中的物质在更大尺度(10~3Mpc)上的分布是均匀的。 大尺度结构是怎样从早期均匀的背景宇宙中增长起来的?这是在宇宙学中最重要也是最困难的问题上一;要解决这个问题需要有关于宇宙的完善的模型。目前所流行的、关于大尺度结构的理论,基本上是以膨胀宇宙论和密度扰动的理论为基础的理论。 在绝热密度扰动(假定初始扰动是绝热的)的方案中,有两种观念特别值得注意: 1,宇宙密度波的观念。在早期宇宙中的扰动有可能在氢复合前形成有物理意义的相干波列;这种波——“宇宙密度波”在氢复合之后有可能影响物质的分布。作为宇宙密度波的可观测遗迹,可以解释已观测的星系分布不均匀性的上限尺度,以及在类星

 
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