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practical importance     
相关语句
  现实意义
     So, it has more practical importance to practice creative education in content, process and evaluation of the chemistry course.
     因此,将创新教育实现于化学课程内容、化学课程实施、化学课程评价等方面具有重要的现实意义
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     Therefore, it is of great practical importance to look at the development of urban planning theory of this period.
     对这一段时期城市规划理论发展动态的梳理,对于今后的发展有着重要的现实意义
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     Therefore, a carefully study on the background and problems of the customer manager system, and finding the measure to develop and perfect it, is of great theoretical and practical importance to the finance innovation and the development of commercial bank.
     因此认真研究客户经理制在我国产生的背景、理论依据及存在的问题,并积极探索发展和完善客户经理制的对策,对于我国金融创新和商业银行发展具有重要理论和现实意义
短句来源
     So the study is obviously of great theoretical and practical importance.
     这一课题的研究显然具有重要的理论意义与现实意义
短句来源
     Thus,it is of practical importance to explore the scientific meaning,aim of development,application doctrine,specific task and suggestions for the application of IT to advance government administrative innovation.
     因此,深刻阐述应用信息技术促进政府管理创新的科学内涵、发展目标、应用原则与具体任务,并探究应用信息技术促进政府管理创新的对策建议,就具有了十分重要的现实意义
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  实践意义
     This paper summarizes the development and the present situation of explosionenergy distribution and controlling methods in rock blasting analyzes some problems which needresearching deeply, and points out that this study is of theoretical and practical importance.
     文中对岩石爆破过程中爆炸能量分布理论与控制方法的发展现状进行了综述,分析了爆炸能量分布理论与控制方法有待进一步研究的问题,并指出该课题的研究具有重要的理论和实践意义
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     The establishment of law protection system has theory importance and practical importance.
     教育公平法律保障体系的建立具有理论意义和实践意义
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     It is of practical importance to learn about the components and features of virtual learning environments. As far as college English teaching reforms are concerned, special emphasis should be laid on the characteristics and methods of virtual language learning.
     了解虚拟学习环境的相关技术、特征及其意义,研究虚拟环境下语言学习的特点以及虚拟环境下的英语学习方法,对于大学英语教学改革具有实践意义
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     A study on countermeasures of competition and development of Sichuan cigarette industry in Sichuan market is put forward under China entering WTO and a canceling of regie retailing license of special tobacco in 2004 and gradually eliminating about the obstacle of cigarette system of China, which is of great realistic and practical importance.
     四川卷烟产业在四川市场的竞争和发展对策研究是在中国加入WTO、2004年取消特种烟草专卖零售许可证和中国卷烟体制性障碍逐步消除的背景下提出,其研究的成果对四川卷烟产业具有非常重要的现实意义和实践意义
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     Therefore, it is of great theoretical and practical importance for the sustainable development of the Yangtze Delta Megapolis to conduct the research of reasonable industrial division and integration between the metropolis and the cities around.
     所以,在科学的发展观的指导下,转换经济发展方式,提高资源的利用效率和配置效率,进行中心城市与周边城市的分工与产业整合的研究,对于促进长江三角洲城市群的可持续发展,不仅具有理论意义,而且在现阶段还具有较强的实践意义
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  实际意义
     Network Design Problems have arisen from the planning of road network and study on Algorithm for Network Design Problem is of great practical importance for the engineering practice of transportation planning.
     网络设计问题来源于道路网络的规划,网络设计问题的算法研究对于交通规划的工程实践具有重要的实际意义.
短句来源
     Detailed research on the principle and conditions of the growth of whiskers is of practical importance to the evolution of metallogenic solutions and the correlation between physiognomy and growing circumstance.
     深入研究晶须生长原理和条件,对进一步了解耿庄成矿热液的演化和相关环境有实际意义,同时对研究矿物形貌与生长环境条件的相关性也具有重要意义。
短句来源
     The determination of the controlling method of the electrohydraulic control system has close relation with the static and dynamic characteristics of its electrohydraulic servo valve,so it is of practical importance to detect the static and dynamic characteristics of the servo valve efficiently and conveniently.
     电液控制系统控制策略的决定与该组成系统的重要环节——电液伺服阀的静动态性能有着密切关系 ,因此 ,有效方便地检测出电液伺服阀的静动态特性有着实际意义。 为准确地检测出精校机用电液伺服阀的静动态特性 ,特研制出一个专用的单片机自动测试系统。
短句来源
     It is of practical importance for long distance optical communication systems with bit rate ≥ 10 Gbit/s.
     这对于长距离 ,10Gbit/s以上的光通信系统具有重要的实际意义
短句来源
     Therefore, it has practical importance for rice irrigation decision.
     因此,本文对指导水稻灌溉决策具有实际意义
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  实用价值
     In the range of 300 K to 200K, the pyroelectric figure of merit remains fairly high, which is of practical importance.
     在300K至200K范围内热释电伏值保持相当高的数值,这具有实用价值
短句来源
     Conclusion Color Doppler ultrasound is of practical importance in the diagnosis of complications after orthotopic liver transplantation.
     结论彩色多普勒超声在肝移植术后并发症诊断中具有重要的实用价值
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     Conclusion Specific nursing care is of great clinical and practical importance for successful completion of PCI.
     结论 全程特别介入护理技术对于经桡动脉行PCI的顺利完成具有非常重要的临床意义和实用价值
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     Therefore, study on dynamic properties of cement mixed pile foundations and the soil structure interaction during earthquakes is of great theoretical and practical importance in seismic design.
     基于以上原因,开展水泥搅拌桩复合地基的动力特性及其与上部建筑结构在地震荷载作用下的共同作用研究,并以此用于指导工程抗震设计,具有重要的理论意义和巨大的工程实用价值
短句来源
     The strongest gel strength appeared at the carrageenan/konjac flour ratio of 3∶2 This property is of practical importance in food industry.
     在 1994年研究确定了其最强协合作用时的配比为 m卡拉胶∶m魔芋粉 =3∶ 2 ,这一性质在食品工业上有很好的实用价值
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      practical importance
    The questions of train aerodynamics have taken on great practical importance in connection with the rapid increase of the speeds of the modern trains.
          
    In certain cases of practical importance, these boundary conditions may be obtained by coupling the N-S equations with equations which are similar to the boundary-layer equations.
          
    Here we study a case of practical importance belonging to the second group: heat transfer in the laminary boundary layer of a transparent gas flowing around a flat plate with the thermal flux qw specified on its surface.
          
    For a number of flow cycles, which are of practical importance, it will be of interest to consider higher approximations in powers of ε [ε=1/√Re, see Eq.
          
    The investigation of both of the above cases, as well as of the transition two-phase medium (Β1)-two-phase medium (Β2) with Β1≠Β2 is not only of scientific, but also of practical importance.
          
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    The analysis of stepped beams on spring foundation is a problem of practical importance. It is shown in the paper that this problem is similar to that of a continuous curved beam on rigid supports and can be most easily solved by method of special slope deflection equations. The formulas for computing load and shape constants being necessarily long, a number of tables of useful functions have been prepared to aid in a quick analysis and a typical example is given. The theory and functions presented in...

    The analysis of stepped beams on spring foundation is a problem of practical importance. It is shown in the paper that this problem is similar to that of a continuous curved beam on rigid supports and can be most easily solved by method of special slope deflection equations. The formulas for computing load and shape constants being necessarily long, a number of tables of useful functions have been prepared to aid in a quick analysis and a typical example is given. The theory and functions presented in the paper are also applicable in analyzing other problems with same mathematical nature, such as the problem of axisymmetrical bending of cylinders with nonuniform wall thickness.

    本文討論彈性地基上的阶形梁的計算問題。应用結構力学上“桿件常数”的观念,这个問题可以簡捷地获得解决。文中除举例說明計算步驟外,並供給必要的函数表,使这些常数能够迅速求出。这些函数同样可以用来解决数学上类似的問題,例如变截面圓筒的軸对称受弯问題。

    The study of the distribution of hydrogen in steel ingots, despite its practical importance, has not received due attention from previous workers. Available experimental results are mainly fragmentary and non-systematic, and therefore many disputable opinions exist. Desirous of investigating this problem in greater details, the authors employed several annealed ingots of high chromium steels which were considered to be particularly suitable because they evolved little gas at room temperature and consequently...

    The study of the distribution of hydrogen in steel ingots, despite its practical importance, has not received due attention from previous workers. Available experimental results are mainly fragmentary and non-systematic, and therefore many disputable opinions exist. Desirous of investigating this problem in greater details, the authors employed several annealed ingots of high chromium steels which were considered to be particularly suitable because they evolved little gas at room temperature and consequently the inherent difficulty to avoid the loss of hydrogen during sampling was, to a very large extent, overcome. For this purpose also, suitable apparatus capable of determining relatively small amount of hydrogen was constructed. The results obtained show that the hydrogen distribution in the annealed ingots follows a significant and regular pattern, thus dismissing certain misgiving conclusions based on contradictory results given by previous workers. Although the average hydrogen content of the anealed ingots amounted to not more than half that of the liquid stael, yet in certain parts of their interior the local hydrogen content was found to be higher than that of the liquid steal. This affirms the existence of hydrogen segregation in steel ingots. Moreover, from maps of hydrogen contour lines drawn for the ingots it can be seen that the regions of the highest hydrogen content roughly coincide with the last solification. Indeed, the effect due to certain external irregularities encountered in the course of solification is detectable rather from the hydrogen maps than by the usual method of macro-etching.In the longitudinal or the transverse direction of the annealed ingots, the general trend of hydrogen variation based on average hydrogen content is shown to be governed by the law of hydrogen diffusion. Further examinations reveal that the ingot structure and its internal porosity exert considerable influence upon the distribution. It is likely that hydrogen diffusion may be faster in columnar crystals than in equi-axed crystal regions. The presence of porosities in ingots seems to retard the removal of hydrogen. Such implications have not been sufficiently realized in the past.Based on the discussion of the experimental results, certain immunizing treatment suitable for preventing hairline cracks in certain types of steel is explained.

    氢在鋼锭中的分佈是一个具有重要实际意义的问题,但在过去未得到研究工作者足够的重视.本文利用高铬型合金鋼在常温下不损失氢的特点,并建立了適宜的半微量定氢装置,对退火后的鋼锭中各个部位进行了定氢试验。结果证明,氢在鋼锭中的分佈是具有规律性的,指出了前人根据不全面的实验结果所提出的错误结论. 经过退火处理后的鋼锭,其平均含氢量虽然只及原来钢液含氢量的一半,伹在某些局部其含氢量反而高於钢液.这说明钢锭中确有氢的偏析现象存在.根据等氢曲线的分布情况来看,钢锭中氢偏析严重之处大致与最后凝固的部分相符.凝固过程中钢锭一面受到中注管散热的影响,也能从等氢曲线的分佈情况反映出来,而这种影响从低倍检验结果来看是没有能够觉察到的. 从氢含量变化的平均趋势来看,退火钢锭中的氢分佈不管是沿横方向抑是沿縱方向都服从於扩散规律,伹必须考虑到结晶构造和内部缺陷的影响.譬如,沿柱状晶轴方向的氢扩散似乎比等轴晶区域内的氢扩散速度大,而钢锭中心疏松对於去氢则起阻碍作用,过去对於这些方面的了解是不够的. 根据上述结果的分析讨论,本文还为某种防止钢中白点的热处理方法提供了理论上的解释.

    Annual rotation of a winter crop with the summer rice is a common agricultural practice in Chekiang province. The rotation system is in variant with regard to the winter crops. In order to evaluate the effect of different winter crops on the state of soil aggregation, the present study was undertaken. Four green-manuring crops including Astragalus sinicus, Medicago denticulata, Vicia faba and Pisum sativam, two winter grain crops including wheat and barley, and one oil-bearing crop, rape, were chosen for rotation...

    Annual rotation of a winter crop with the summer rice is a common agricultural practice in Chekiang province. The rotation system is in variant with regard to the winter crops. In order to evaluate the effect of different winter crops on the state of soil aggregation, the present study was undertaken. Four green-manuring crops including Astragalus sinicus, Medicago denticulata, Vicia faba and Pisum sativam, two winter grain crops including wheat and barley, and one oil-bearing crop, rape, were chosen for rotation with the summer rice in the field. The soil under experimentation has been developed under cultivation from an alluvial parent material of fine sandy loam. The field had a water-table lying at a depth of about one meter from the top of the soil throughout the year except during rice growing season. As a check for comparison, winter fallow following rice was also included among the field treatments. Experiments are continued through five consecutive crop seasons, including two in rice and three in winter crops. Among the results, the following may have practical significance in evaluating the various systems of annual rotation for rice field: 1. Among the rotating winter crops tested, Astragalus sinicus is most effective in promoting the formation of soil aggregates having 1-5 mm. in diameter which are believed to be beneficial for rice cultivation. Other leguminous crops also show their constructive effect on soil aggregates, but are by far inferior to the Astragalus. To the contrary, soils under winter grains and the rape tend to deteriorate in their aggregation. 2. Close parallel relationship is found between the soil organic matter content and the percentage content of soil aggregates having 1-5 mm. in diameter. 3. The structural units with diameters larger than 5 mm. seem to be different in nature from those aggregates having 1-5 mm. in diameter. For rice soils, such large structural units are believed to be of little practical importance in so far as their fertility status is concerned, since they are to be disintegrated during the cultivation of rice.

    四、摘要本試驗的一年轮作制,包括單季水稻与下列冬作的轮栽:紫云英,苜蓿,蚕豆,豌豆,油菜,小麦及大麦。另以冬季休閑作为对照。經过三次冬作,二次水稻(夏作)的轮栽,結果显示: 1.冬季种植一年生荳科綠肥,能够增加土埌中有机質含量。其中以紫云英最佳;苜蓿,蚕豆,豌豆等次之。 2.在水稻与紫云英轮作的土埌中,直徑为1—5毫米的团粒含量有显著的增加。水田中的其他荳科綠肥,如苜蓿,蚕豆,豌豆等,也能維护土埌中的团粒構造,但其效果較差。水田中禾谷类冬作轮栽或油料作物轮栽,对于土埌中直徑为1—5毫米的团粒含量,均有破坏的影响。 3.各輪作区,凡土埌有机質含量較高的,其直徑为1—5毫米的水稳性团粒也比較多;而其他大小的構造單位,和有机質的多少无关。

     
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