The essential characteristics, flight sequence, trajectory design and optimal analysis for air launch vehicle are discussed.
讨论了空中发射运载火箭的基本特点、飞行方案、发射轨道设计和优化分析方法。
The control of the trajectory is the core technique in horizontal well technique, while trajectory design and optimal design are the two key techniques.
井眼轨迹控制是侧钻水平井技术的核心,而轨道设计与优化设计又是轨道控制技术的两大关键技术之一。
Of course, you've got sites to design and worlds to take over, so that's not optimal.
当然,您已经有了需要设计的站点和需要掌控的世界,所以这显然不理想。
This is the optimal design for mobile Web applications, since it allows for all of the code and static markup to be cached on the device, and the user only waits for data from the server.
这是移动Web应用程序的优化设计,因为它允许将所有代码和静态标记缓存到设备上,用户只需等待来自服务器的数据。
The aim of this article is to display common trends and design approaches in iPhone app design - please notice that they are not necessarily optimal ones from the design or usability point of view.
本文的宗旨是阐明苹果手机应用软件设计的共同趋势和设计方法。请注意,这些共同趋势和设计方法从设计或者实用性的角度来看未必最优。
Additionally, these kinds of SQL statements are the most sensitive to proper indexing and database design, so look to the following Pointers for tips for optimal performance.
此外,这些类型的sql语句对适当的索引和数据库设计最敏感,因此查看以下指示,获取实现最优性能的技巧。
The implication is that analysis and design choices that may be optimal for a specific project would marginalize their reusability across the enterprise.
这意味着分析和设计所做的选择,对一个特定的项目可能是最好的,该项目会边缘化它们在企业内的再用性。
Actually, one could observe the rising trend toward centered design layouts few years ago - often it was the attempt to find an optimal solution for readers with large and small screen resolutions.
实际上,我们可以观察得到几年前博客中间对齐的趋势——这往往是出于为使用大大小小的屏幕的读者寻求最佳选择的目的。
The first example implementation uses a technique where the initial design, as proposed by the standards used, suggests a non-optimal access pattern and causes performance problems.
第一个实例的实现使用的是最初的设计方法,由于是按标准使用模式提出的,表明它不是最佳的访问模式,因此会引起性能问题。
During the design phase, the costs and benefits are often weighed against each other to achieve an optimal solution.
在设计阶段,成本和一处往往被权衡再三,以获得一个最优的解决方案。
Through comparison between primitive model and optimal model, it is proved that multi-objective design study can optimize the design objects which conflict each other.
通过原始模型和优化模型的比较,证明多目标设计研究能较好地对相互冲突的多个设计目标进行优化。
And the designing method has universal significance for optimal design of pneumatic system.
这种方法对气动系统的优化设计具有普遍意义。
The design methods and further improvement of optimal PID controller for these plants are investigated respectively and a lot of simulation experiments are performed.
针对各类对象,分别讨论了基于稳定域最优PID控制器的设计及进一步改进,并进行了大量仿真实验。
This paper applies the technique of constrained trajectory propagation and optimal theory to design the autolanding trajectory for a space shuttle.
采用沿约束轨迹的推演计算方法及优化原理对航天飞机自动着陆飞行轨迹进行优化设计。
In the preliminary design phase of engine, engine configurations must be analyzed and assessed to choose main design parameters and to select optimal engine scheme from multiple candidates.
在发动机初步设计阶段,要根据对发动机的构型方案进行分析与评价,来选择发动机主要设计参数,并从多个发动机方案中选择最佳方案。
For this kind of motion is determinated, it is feasible to be worked out uniquely in advance and design an optimal controller to suppress the load sway according to the quadratic optimal law.
由于这类运动是确定性的,可以事先唯一地求出,由此设计出一种最优控制器,按照二次型最优消摆规律消除载荷摆振。
This paper introduced the working principles of ceramic tile die with static-pressure, structure type of upper punch and method of optimal design.
介绍了等静压瓷砖模具的工作原理、上模芯的结构形式和优化设计的方法。
To propose optimal design for structural engineering by using advanced technology and ensuring economy.
对工程方案提供优化设计,做到技术先进、经济合理。
By a specific example, the process of applying multi-objective design study is described and then the optimal model is obtained.
通过实例,详细地叙述了多目标设计研究的具体实施过程,得出了优化模型。
The optimal design of whole structure of electrostic precipitator is a adjustable optimal problem of geometry and topology, which has larger scale and many design variables.
电除尘器本体结构优化设计是一个规模大,设计变量数多而具有相当难度的几何可调和拓扑可调优化设计问题。
The model was used in the rolling parameters optimal design system and the rolling shape optimal design system, and good results were obtained.
该模型在连轧机参数优化设计和辊型配置优化设计系统中均得到应用,效果良好。
BP neural networks and GA were applied to the optimal design of mechanical structure.
将BP神经网络和遗传算法相结合运用于快速设计的结构优化问题。
The effects of DBR reflectivity and well Numbers on threshold current and output power of bottom-emitting VCSELs were analyzed to design an optimal device structure.
分析了腔镜反射率、量子阱数等参数对阈值电流、输出光功率的影响,并根据理论计算对器件参数进行了优化设计。
Failure criticality analysis is an important process to the research of construction machinery's optimal design and the improvement of its reliability.
失效致命度分析是研究工程机械优化设计、提高其可靠性的重要环节。
Different from the general topology optimization design, both the optimal topology and the optimal shape and size can be obtained.
这类问题不同于一般意义的拓扑优化问题,其优化结果不仅得到最优拓扑,而且得到最优形状和尺寸。
The design requirements, shipform selection, lines optimal design and model test research, and full scale navigating trial of a test boat with multipurpose are presented.
阐述综合试验船的设计要求、船型选择、型线优化设计、船模试验研究及实船航行试验。
A new engineering method for dealing with discrete design variables for design and manufacture was put forward in order to solve optimal design with mixed discrete variables.
为了解决混合离散变量机械设计问题,提出了一种面向设计、制造的设计变量离散化处理方法。
A new engineering method for dealing with discrete design variables for design and manufacture was put forward in order to solve optimal design with mixed discrete variables.
为了解决混合离散变量机械设计问题,提出了一种面向设计、制造的设计变量离散化处理方法。
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