查询词典 linear order

Thus, the phenomenon of this autonomous helicopter whose fuselage circles the rotor hub to swing, is one kind of symmetrical two-dimensional pendulum with variable suspension point, and characterized as a non-linear, strong-coupling, high order, unstable system.

其机体绕旋翼桨毂的钟摆现象为对称变悬点二维摆，且具有非线性、强耦合、高阶次、不稳定等特性。

In Chapter 2, an existence theorem is obtained for periodic solutions of non-autonomous second order systems with even-typed potentials. We also investigate solutions of linear bounded positive self-conjugation operators equations in Hilbert Space by variation methods.

第二章主要利用临界点理论中的归药方法、极小作用原理研究具偶型位势的二阶非自治系统周期边值问题，得到了周期解的存在；利用变分方法证明了Hilbert空间中有界线性正自共轭算子方程解的存在性。

The high order linear space state model has 25 state variables, including six degrees of freedom of rigid fuselage, flap motion of main and tail rotor, non uniform dynamic inflow at rotor plane.

以某型直升机为例，对线性模型与非线性模型的时域动态响应，及 2 5状态高阶线性模型和传统 6自由度 9状态模型的特征值进行了比较，验证了建模方法的可靠性和精度

Data structure is a professional and technical basis for classes, and he can help you learn computer analysis of the data processing structure characteristics, in order to choose the appropriate application of the logic of data structures, storage structures and the corresponding algorithms, and preliminary analysis of algorithms of time and space analysis techniques, But some algorithm data structure (linear scales, warehouse and accounts, string, etc.) will be some difficulty in understanding the data structure algorithms demonstration system is an effective way to resolve this difficult, and he gives a more intuitive understanding.

数据结构是一门专业技术基础课，他能帮助大家学会分析研究计算机加工的数据结构的特性，以便为应用涉及的数据选择适当的逻辑结构、存储结构及其相应的算法，并初步学会算法的时间分析和空间分析的技术，但数据结构中的一些算法（线性表、栈和队列、串等）在理解上会有些困难，数据结构算法演示系统正是解决这个困难的一种有效方法，他给人更直观的理解。

Results The basic structure is suitable for not only high-order linear systems but also nonlinear and time-varying systems, it can be up to high precision. Therefore, the adaptivity and robustness of control systems based on neural networks have been implemented on-line by use of this basic structure.

结果 该基本结构不仅适用于高阶线性系统，也适用于非线性及时变系统，可达到较高的辨识精度，保证了由此构成的神经网络控制系统具有较好的自适应性和鲁棒性。

The first-order optimization algorithm was used to optimize and assess the updating parameters. The simulation analysis on an in-service rig derrick was carried out using the linear buckling, geometric nonlinear and double nonlinear methods.

以某型号在役钻机井架为例，利用该方法并结合线性屈曲法、几何非线性法、双重非线性法，对其进行了仿真建模和承载性能仿真分析，确定了该钻机井架的极限承载力、破坏形式及危险部位。

This yields first, second and third order accuracy in the case of the constant, linear and quadratic extrapolations, respectively.

使用的外插法有常数、线性以及二次的外插法，并将分别可以得到一阶、二阶以及三阶的精度。

In order to test theory hypothesises,this paper uses online questionnaire to collect data and then carries out statistical analysis.The main research approaches used to carry out quantitative analysis are statistical description,paired sample T-test,ANOVA,components analysis and multiple linear regression analysis.

为了验证理论假设，本文通过网络在线填写问卷的方式收集数据，并综合运用了描述性统计、配对样本T检验、方差分析、因子分析和多元线性回归分析等数理统计方法展开普遍意义上的定量分析。

This activity has been planned for four months while it was only discussed twice by all artists who want to eliminate the hypothesis, the thematisation, the narrative tendency and the linear presentation of works and to obviate the tacit trend in order to finally force the artists to have their own improvisations on the scene.

这个活动谋划了4个月，而艺术家的集中讨论只有二次，就是想去除作品中的设性，去除主题化、叙事性和作品的线性呈现，回避默契化倾向，逼迫艺术家能够更好的在现场产生自己的即兴反应。

Even though bones are a very organic form, it's still crucial to adhere to the rules of linear perspective, in order to create the illusion of form in space.

尽管骨骼的形状很有机，但是为了创造物体处于空间中的视觉效果，遵循直线透视法则依然至关重要。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。