查询词典 differential geometry

The theoretical analysis indicates that the drive unit of tri-axial differential in-pipe robot has automatic differential velocity property without autoeciousness power, furthermore its drive-wheels produce sufficient drawing force. So it adapts to geometry and locomotion constraint in elbow.

理论分析表明，三轴差动式管道机器人驱动单元在弯管处自主差速，无寄生功率产生，驱动轮能够提供足够的拖动力，具有良好的机械自适应特性。

Then using classical fractional differential G-L definition deduces fractional order differential difference function and constructs an approximate fractional order differential Tiansi module.

然后由经典的分数阶微分定义出发，推导出了分数阶差分方程，构建了近似的分数阶Tiansi微分模板。

Simulation results show that our algorithm enforces the adaptability of differential space-frequency modulation to the time delay expansion.Finally, we give our work to reduce the complexity of multiple symbol differential sphere decoding in differential space-time modulation. Through the modification of the enumeration strategy of the search tree in sphere decoding, we significantly reduce the complexity of detection at the expense of little loss on performance.

理论分析和仿真结果都验证了这种检测算法对长信道时延的适应能力论文最后还对差分空时调制中的多符号检测算法进行了研究，提出了一种降低差分空时调制系统中多符号差分球形译码算法复杂度的方法，通过改进球形译码中搜索树的排序策略，使得系统在牺牲较少性能的基础上大大降低了算法实现的复杂度。

Consideration of the structural characteristics of autotransformer, the principles and characteristics of zero-sequence differential protection are analyzed by taking PST1200 as an example, debugging method of zero-sequence differential protection is summed up briefly, the method can well verify the logical function correctness of zero-sequence differential protection, and it has been verified in practical application.

结合自耦变压器的结构特点，以南自PST1200变压器保护装置为例分析了零序差动的原理构成及特点，简要总结了零差保护的调试方法，能够较快且准确的校验零差保护逻辑功能的正确性，并已在实际工作中得到了很好的验证

The text analyses GPS observation model, the characteristic of kinds of errors fountain and the adopting measures in the observation, and processes the thorough research to Bernese GPS Software Ms-Windows Version 4.2. It makes the most stable satellites as the main error. The differential way adopts non-differential way and double differential way. The positioning precision of the single point is decimeter level. RMS is within 0.01~0.02; If the ambiguity right and without week skip, the observation datum of a EPOCH-BY-EPOCH can make the short base line（S0km）positioning precision reach centimeter level.

本文分析了GPS的观测模型、观测量中各种误差源的特点及应采取的措施，并对Bernese GPS Software Ms-Windows Version 4.2 软件进行了深入的研究，它是以最稳定的卫星作为主差，采用非差和双差两种差分方法，单点定位精度在分米级，RMS能在0.01~0.02以内；在模糊度已求解正确条件下，若没有周跳，一个历元的观测数据就可以使短基线（S0km）定位精度达到厘米级。

Based on the differential surge tank commonly used in long-distance diversion hydropower stations, in which interconnecting holes with rational cross sectional area were arranged at different elevations of breast wall between outer chamber and gate shaft used as a riser, a study was made on the influences of interconnecting holes on the differential performance and differential pressure of the surge tank, and further surge analysis was performed through a case study.

对于长引水式水电站常用的差动式调压室，分析了其兼作升管的闸门井和大井之间的胸墙在不同高程上布置的面积合理的连通孔，对调压室的差动性能和压差的影响，并结合实际算例进行涌浪分析。

The STK730-080 is a zero delay buffer that distributes a differential clock input pair to ten differential pairs of clock outputs (Y[0:9], Y[0:9]) and one differential pair feedback clock outputs .

该STK730 - 080是一种零延迟缓冲器，差分时钟分配一个输入对，以10的时钟输出（是[0时09]， [0点09]）和一个差分对的差分对时钟输出反馈（FBOUT，FBOUT）。

In this paper, we study the differential form Wus method and put emphasis on the algorithm of differential characteristic set for differential polynomial system, and its applications.

首先，在系统总结微分情形吴方法的算法的基础上，提出了一种简化算法′算法，并给出了相应的理论证明。

The differential characteristic set for differential polynomial system maintains the essential character of original differential polynomial system.

微分多项式系统的微分特征列集保留了原微分多项式组的本质特征，具有三角化良序结构等优点，能够克服不同领域问题中的一些困难。

Based on analyzing the d-δ commutation relation for the linear stationay differential constrained systems and affine differential constrained systems, the relationship between noncommutator of differentiation and variation and nonholonomicity of the differential constraints is briefly proved by means of Frobenius integrability theory.

文中以微分约束的Frobenius可积性理论为依据，在分析线性稳定微分约束系统和仿射微分约束系统的d-δ对易关系基础上，简要论证了微分与变分的非对易子与微分约束的非完整性之间的关系。

Green function defined inphase space differs from one in coordinate space by its struc-ture which exhibits nonlocatity in coordinates and oscillatorybehavior with respect to momenta.

在相空间中定义的Green函数不同于通常坐标空间的Green函数，在结构上显示出对坐标的高度非局域性，而对动量则显示出振荡行为。

The upper front part of a saddle;a saddlebow.

前鞍桥马鞍前面的上部分；前鞍桥