控制空间

Firstly, as the theoretical basis for DCC, the stiffness characteristics of DCC parallel mechanism is investigated.

首先，作为实现直接柔顺控制的基础，研究了空间任意自由度并联机构的刚度特性。

In the model investment, pavement distress and transportation capacity are selected as the decision variable, the state variable and the output variable, respectively.

基于投资决定路况、路况决定运力这一事实，以投资、路况和运力分别为控制变量、状态变量和输出变量，建立了道路系统的状态空间模型。

Three methods were compared,the results showed that the mothod——rceirculation fumigation under film through PH 3 dynamic deliquescence can reduce fumigation spaces effectively,save CO 2,control the moisture content losses of grain bulk,and the phosphide residue in grain were in accord with the national health standard,the effect of controlling stored-grain insects was obviously.

三种方法的对比试验表明，膜下动态潮解法，有效地减少了熏蒸空间，节省了CO2 ，控制了粮堆的水分散失，粮食中的磷化物残留量低于国家卫生标准，杀虫效果显著。

This paper denominate the PDSR whose dimension hasbeen reduced analogous PDSR. By visualizing the L-PDSR the dispatcherscan monitor the system security and make decision of security control more quicklyand correctly.

对其进行三维的可视化，可使调度员能够对当前的运行点在注入空间内不同方向上的稳定裕量一目了然，从而可以快速准确的进行予决策乃至紧急控制。

Based on the important idea of duality between plane and point geometries,two direct explicit methods of computer-aided design for developable surface s were proposed,the developable surface s were represented using control planes with appropriate basis functions.

为了克服传统方法在可展曲面设计上的缺陷，方便地解决工程中经常遇到的可展曲面位置和形状难以调整和控制的问题，基于3D射影空间中点和平面间的对偶性这一重要思想，提出了两种直接、简单的可展曲面设计方法。

It order to overcome the difficulties in representation of developable surface s utilizing traditional approaches,based the concept of duality between points and planes in 3D projective space, a direct explicit method of computer-aided design for developable surface s was presented.

基于三维射影空间中点和平面间的对偶性，提出了计算机辅助设计五次样条上可展曲面的一种简单且有效的方法，通过采用该方法，可利用具有B啨zier和B样条基的控制平面设计可展曲面。

Air conditioning systems help control humidity by cooling the return space air below the dew point.

空调系统，帮助控制湿度的冷却空气空间返回低于露点。

The model was derived by using the geometrical relation and Newton theory, and the validity of the model was demonstrated by experimental results. DFP method was used to calculate the optimal control input.

利用空间几何关系及牛顿力学原理建立数学模型，经实验结果与仿真结果的比较验证模型的精确性，并利用DFP法进行最优控制量的计算。

Nonlinear control system; transfer function; differential vector space; noncommutative ring

非线性控制系统；传递函数；微分向量空间；非交换环

The results show that after the water transfer project,water level and the capacity of the middle and lower reaches of Hanjiang River will be enhanced,the concentration of the water pollutant will be reduced,the "water bloom" phenomenon will be controlled,fish''s survival space will be improved,but the potential risk of schistosomiasis diffuseness may be increased.

研究结果表明：引江济汉工程在一定程度上提高了汉江中下游的水位和流量，降低了汉江中下游水体的污染物浓度，能够在一定程度上控制"水华"现象，改善鱼类的生存空间，但同时也存在造成血吸虫病传播的潜在风险。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。