指出
- 与 指出 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
This kind of respiration is called anaerobic respiration.
必须指出的是,这并不是没有根据的臆断,而是根据充分的科研成果面提出来的。
-
First, the thesis introduces the research background and significance of the project, and summarizes the advantages of the digital monitor system. Its pointed out that the analog monitor system is bound to be replaced by the digital one, and the key techniques in the system are referred to.
论文首先阐述了研究背景与意义,介绍了网络数字监控系统的优点,指出监控系统由模拟式转变为数字式、网络式是必然趋势,并简要提及了数字监控系统中的关键技术。
-
Furthermore, the effective supporting intensity derived from analogic material simulating test is 0.4—0.5MPa.
指出软岩巷道维护效果好坏的关键是提供给围岩的支护强度是否合理。
-
None of these analogies comes close enough to the essential magic and majesty of a real learning experience.
这些比拟都无法指出真正的学习过程中的基本魔法和崇高之处。
-
However,in at early work of Dolan and Jackiw, after the analytic continuation ofthe imaginary time thermal propagator, the result was not the 2 × 2 matrix thermalpropagator in the real time formalisms, but only the 1-1 component of the matrix,which caused singularities like higher order δ function's.
然而在Dolan和Jackiw的工作中,由虚时热传播子解析延拓得到的结果不是实时方法中的二阶矩阵形式的热传播子,而只是其中的1-1矩阵元,从而会导致象高阶δ函数这样的奇异性,本文指出,这个结果是来源于一个隐含的假设,即认为实时方法的背景时空是一个明氏时空。
-
The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.
文中对汽车碰撞安全性的设计理论和方法进行了归类和总结,其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等;重点介绍了碰撞有限元法的基本理论和有关算法,涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等,探讨了有限元计算中的材料模型参数获取技术,开发了相应的材料试验装置及材料模型参数反求软件,在此基础上进行了基本的碰撞仿真算例和试验对比研究;文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性,指出了设计薄壁吸能构件时需要考虑的几个主要影响因素,即焊点、壁厚、横截面和预变形等;在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究,提出了吸能转向机构和自适应安全气囊的仿真研究方法;文中最后探讨了整车碰撞性能的设计与改进方法,提出了以理想碰撞特性为目标,采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法,并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究,所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车,研究结果表明,本文所提出的设计与改进方法是适用而有效的,具有重要的工程实用意义和价值。
-
And then, the exploitation methods and the key techniques of USIS, including data base design, main surface realization, MAPGIS secondary development, OpenGL 3D mapping techniques and digital mapping and intellective analytical technology, are discussed.
介绍了建立地下空间信息系统的目的和意义,论述了USIS的开发方法及其关键技术,包括:数据库技术、界面实现技术、MAPGIS二次开发技术、OpenGL三维图形开发技术、数字制图与智能分析技术等,并结合东深供水改造工程地下空间信息系统进行了开发方法和关键技术的应用研究,最后,对USIS的发展趋势作了较深入的分析,指出了今后研究的几个主要方向。
-
Firstly, it discusses the principle of adaptive interference chancellor, including broad band signal and narrow band signal; Secondly, it analysises one common algorithm used in adaptive interference chancellor, that is, LMS algorithm and its anamorphosis algorithm especially normalized LMS algorithm pointing out their relationship. After then, the paper talks about the structure and reality of canceling broad band noise in narrow band signal and narrow band noise in broad band signal and gives it's result simulation analyzing the factors affecting the power of the algorithm. In the last party, it gives the hardware design and assembly language software design using TMS32OC3 1, including the result of simulating.
首先,本文讨论了自适应干扰对消的原理,并对窄带信号和宽带信号两种进行了分别分析;然后本文对自适应干扰对消中常用的算法—LMS算法进行了分析,同时也讨论了LMS算法的变形算法,尤其是归一化LMS算法,并指出了这些算法的相同和不同之处;此后,本文讨论了窄带信号中的宽带干扰对消和宽带信号中的窄带干扰对消的结构及实现方法并给出了住址的结果,分析了影响干扰对消效果的因素;在论文的最后,给出了用TMS320C31实现窄带信号中的宽带干扰对消的硬件设计和汇编程序设计,以及汇编语言程序的结果,并就此结果与高级语言程序的结果作了比较。
-
And on the basis of classical studies, a general analysis on the properties of anaphoric binding of PRO in Chinese has been done.
同时,在前期研究的基础上对汉语中PRO的照应性约束特征作了概括性分析,并指出,汉语PRO照应性的分析主要是在语义照应的语境中进行的,这是汉语PRO照应性研究的基础。
-
XRD results indicated that the presence of TPA retarded the crystallization of titania and stabilized TiO2 in anatase phase.
XRD结果指出TPA的存在延迟并抑制了TiO2的晶化以及稳定了锐钛矿晶相。
- 推荐网络例句
-
The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
-
This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
-
The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力