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Based on the theoretical analysis and design practice in successful development of ALLWAY desiel engine in China, the design concepts of key parts and components of engine, in particular the cylinder block and cylinder head, are analyzed for meeting the r
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摘要结合我国自主开发的“奥威”发动机在设计工作中的理论分析与实践，就低排放中重型商用车柴油机在开发工作中为满足高性能、低排放的要求及在高燃烧爆发压力和高热负荷下正常可靠地工作，对发动机的关键零部件，尤其是缸盖与缸体的设计概念进行了分析。 |
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Based on the theoretical analysis of the anchorage technique of planting-bar, this paper presents the failure model, empirical formulation and key points of operation of planting-bar anchorage, and explains the development and application of planting-bar
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摘要通过对植筋锚固技术的理论分析，系统地提出了植筋锚固的破坏形式、工程经验公式及施工操作的要点，并结合现场试验与检测说明植筋技术在港口工程上的发展应用。 |
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Based on the theoretical contact mechanics, the numerical simulations demonstrated that the axial stiffness during compression was sensitive to both the amount of plastic deformation and the interparticle friction occurring at the contacts within the asse
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研究发现：弹塑性球颗粒系统在加载时其轴向刚度对颗粒间产生的塑性变形量及颗粒间的摩擦均很敏感。 |
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Based on the theoretical numerical simulation, experimental data of calibration pits, and time-elapsing logging data in cased production pits, a study is made for searching an evaluation method for cementing quality of the secondary interface by variable
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摘要从理论正演数值模拟、刻度井试验资料和实际生产井时间推移测井资料3个方面，探索用变密度(VDL)波形评价第二界面胶结质量的方法，提取反映第二界面的胶结状况的特征量。 |
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Based on the theories of Contrastive Analysis and Error Analysis, this paper categorizes and analyzes some typical inter-lingual errors in Chinese learners' English writing, and it calls for further attention to the characteristics of the learners' Englis
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本文以对比分析和错误分析为基础，归纳并分析了学生英语写作中典型的由于母语负迁移造成的语际错误。 |
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Based on the theories of children's psychological development and cognitive-processed psychology, the researcher probes into the characteristics and reasons of children's reading difficulties, arguing that the problems about children's reading difficultie
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摘要本文从心理发展和认知加工角度探讨了早期阅读困难的特徵和原因，揭示了语音意识、视觉空间认知和工作记忆等基本认知能力对早期阅读困难的影响，提示研究者应从更广泛的领域关注早期阅读教育的理论与实践研究。 |
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Based on the theories of continuous flow of porous media, rheology of silica gel solution and adsorption and migration of silica gel in porous media, a two-phase multicomponent mathematical model for oil displacement is developed with a numerical simulato
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在连续性介质渗流理论、硅胶溶液流变性理论、硅胶在孔隙介质内吸附和运移理论基础上，建立了一个两相多组分硅胶驱油数学模型，并开发了一个数值模拟器，定量模拟了硅胶质量浓度、注入体积和注入方式对孔、渗参数和开发效果的影响。 |
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Based on the theories of language construction, humanism-based teaching and cognitive approach, this article presents a collaborating study model via computer multimedia network as the extension of the first class and gives some explanations for that in d
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摘要本文根据建构主义学习理论、认知理论和人本主义学习理论提出了基于计算机多媒体网络环境下的协作式学习环境模式，并详述了实施模式的具体说明。 |
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Based on the theories of network-based teaching and quality inspect, the paper probes into the approaches of quality evaluation in college English teaching, and introduces a new assessing mechanism that is suitable for the current English Teaching circums
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摘要本文依据网络教学与质量监控的相关理论，研究探索了大学英语网络学习中质量评价的各种手段，并初步建构了适合现有大学英语教学环境的学习质量评价体系。 |
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Based on the theories of non-diffracting imaging system in coherent light, the measurement system of point spread function (PSF) of non-diffracting imaging system has been presented.
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摘要在分析相干光照明下无衍射成像系统理论的基础上，设计了无衍射光成像系统的点扩散函数的测量系统。 |
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Based on the theories of system engineering and AHP, the comprehensive survivability of modern warships is evaluated.
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摘要根据系统学的原理，运用层次分析的方法，对现代作战舰艇的整体生命力进行了全方位评估。 |
