查询词典 space model

Based on the systematic analyses of the applications and developments of step motor, the driving technique of step motor are analyzed in this paper, and upon these statements, a mathematical model of VR step motor is built. With this model, the coil current of step motor with chopping driver and the non-loaded starting frequency are simulated for the base of designing of step motor servo system.

本文在系统分析了步进电机应用和发展的基础上，对步进电机的驱动技术作了详尽的论述，建立了三相反应式步进电动机的数学模型，并利用该模型对斩波驱动的步进电机绕组电流及空载运行的启动频率等进行了仿真，为步进电机驱动系统的设计提供了依据。

Firstly, 3-D model of driving axle and whole vehicle model in ADAMS were built.

车架作为载重汽车各总成和组件连接的主要载体，承受着复杂的垂向力、横向力和纵向力作用。

By means of automotive driving axle housing model tests, a weaken signal component covered by stronger exciting response signal was obtained by using of wavelet multiresolution analysis and a AR signal model was formed.

通过汽车驱动桥模型试验，利用子波变换多分辨分析技术，提取了淹没于响应信号中的微弱信号分量，并建立了裂纹信号的AR模型。

Then, under the base of the model, according to the various condition,the model of the drone

然后以此模型为基础，根据不同的条件，对无人机模型进行仿真，分析相关性能，重点是风和导引头对制导精度的影响。

The pressure drop of the compound tray can be regarded as consisting of dry plate pressure drop, clear liquid resistance, liquid surface tension resistance, and packing pressure drop. The model that has established can fairly predict the pressure drop of the compound tray, the value calculated by the model compared with that detected by experiment is less than 20%.

复合塔板的压降可认为由干板压降、清液层阻力、填料层压降和克服液体表面张力的压降四部分组成，所建立的压降计算模型，能较好地预测复合塔板的压降，计算值与实验值误差在±20％以内，可用于工程设计。

Current dual control is designed base on dynamic and static performances. The typical I model is used to design inner current controller in order to obtain quickly following performance. The typical II model is used to design outer current controller in order to obtain high resistive performance.

分析设计充放电装置的电流双闭环控制：对电流内环采用典型Ⅰ型系统设计电流控制器，以获得较快的电流跟随性；而对电流外环控制则采用典型的Ⅱ型系统设计电流控制器，以提高装置的抗扰动性，实现阶段的恒流充放电。

The damage assessment of structures is based on the earthquake damage criteria and damage model. The author in the text, through the existing description of earthquake damage criteria and damage model, believes that the actual earthquake damage can be showed by the dual damage criteria on the basis of deformation and energy.

结构的地震破坏评估是建立在地震破坏准则和破坏模型基础上的，本文在对己有的地震破坏准则和破坏模型进行评述的基础上，认为基于变形和能量的双重破坏准则可较好地反映结构的实际震害，并根据倒塌极限状态方程提出了改进的 Park＆Aug。

Research on the interactive model for multi-level security policy focuses on the conversion and coordination mechanism between various policy models, and raises one policy management model based on a dual level policy mapping mechanism.

对多级安全策略互操作模型的研究初步探讨了安全网络环境中异构策略模型之间的转换与协调机制，提出了基于两级安全策略映射机制的策略管理模型。

We compared this two model and found that the two model is coincident when dual relation was symmetric.

接着我们又用前继邻域代替等价类建立了另一个准一般关系下模糊粗糙集模型，并把两种模型进行比较，指出当二元关系满足对称性时两种模型是一致的。

In the second issue, the use of dual simplex method to establish a shadow price model to determine when some investors to bank lending rates to certain funds, the investment program to change it, and a problem in the test model.

在问题二中，利用对偶单纯形法建立影子价格模型来判断当投资者以一定的利率向银行借贷一定资金时，投资方案是否改变，并用问题一中模型进行了检验。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。