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In this dissertation, the hybrid electric vehicle power distribution system modeling, control and simulation are systematically studied.

本文对混合动力汽车动力分配系统的建模、控制与仿真进行了系统的研究。

The teaching practicum plays a key factor in teacher professional development and should be planned and implemented systematically.

二、教育实习为教师专业发展的关键，必须有系统的规划及实施。

Polycarbosilane was used as the preceramic for matrix formation and 2D layered 0°/90° fabrics as the reinforcement to fabricate C/SiC composites. The effect of pyrolysis temperature and slurry concentration on the properties of the composites was systematically studied.

采用聚碳硅烷作为碳化硅先驱体，以二维0°/90°正交编织碳布叠层后作为增强体，采用真空压力浸渍的方法制备了C/SiC复合材料，研究了裂解温度和浆料浓度对复合材料性能的影响。

Two polysiloxanes (SR2 and P67) and one polycarbosilane were chosen as preceramic polymers. TG-DTA-MS, FT-IR, XRD,〓Si MAS-NMR, SEM, TEM, SAD, HREM, chemical analysis and density measurement techniques were used to study the cross-linking and pyrolysis mechanisms of the preceramic polymers. The development of chemical composition and structure, density, phase composition and microstructure of the solid pyrolyzed products during pyrolysis process were systematically investigated. While pyrolysis temperature approached 1000℃, ceramization process of the preceramic polymers almost completed, and ceramic yield of the preceramic polymers hardly changed any more.

选取了两种聚硅氧烷（SR2和P67）和一种聚碳硅烷作为聚合物先驱体，利用TG-DTA-MS、FT-IR、XRD、〓SiMAS-NMR、SEM、TEM、SAD、HREM以及化学成分分析、密度测量等手段，研究了聚合物先驱体的固化机理；以N〓为热解气氛，系统地考察了各种聚合物先驱体在热解过程中，其热解产物的化学成分和结构、密度、相组成及显微结构的演变规律。

In order to predigest experiment and save energy, material and time, bubble factors of Bi-2212 tape were studied systematically by grey theory.

为了简化实验，达到节能、节材及节时的目的，利用灰色理论系统地研究了Bi-2212带材鼓泡的影响因素。

The theory and algorithms of automatic fingerprint identification system preprocess are systematically illustrated.

系统阐述了自动指纹识别系统预处理的理论、算法。

With the development of research in eco-physiology of plants in adverse environment, and the need of environmental protection or reconstruction, it is pressingly necessary to enhance the eco-physiological research in desert psammophytes, in depth and systematically.

但是随著植物逆境生理生态在宏观和微观方面研究的不断深入和生态环境建设的需求，迫切需要加强沙生植物生理生态研究的深度和研究的系统性。

With the development of research in eco_physiology of plants in adverse environment, and the need of environmental protection or reconstruction,it is pressingly necessary to enhance the eco-physiological research in desert psammophytes, in depth and systematically.

本文就沙生植物生理生态的研究历史、现状及国内外有关植物抗逆生理生态研究进展作了简要综述，并对今后沙生植物生理生态学的研究方向提出了一些

The SCVFV(the convection-diffusion difference scheme based on control-volume face values) scheme was put forward. The theory of the SCVFV scheme was systematically elaborated. The general interpolation formula of the SCVFV scheme was given. The formulas of the SCVFV scheme based on the Cartesian coordinate were derived. The precision, the mass conservation property and the preventability of the false-diffusion of the SCVFV scheme were theoretically analyzed.

提出了基于控制容积面值的对流扩散差分格式SCVFV，系统地阐述了SCVFV格式的基本思想，给出了SCVFV插值公式的通用表达式，推导了直角坐标系下完整的SCVFV格式的表达式，从理论上分析SCVFV格式的精度、守恒性及反伪扩散性。

This thesis further combines the previous examination with an investigation of global trade practices of both ancient and pre-1920's China so as to systematically dissect the development and evolution of thinking that has underlined the international trade of modern China.

总结了当代中国对外贸易思想的理论基础以及西方传统国际贸易理论与西方新贸易理论对中国对外贸易思想的影响。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样