The first parameter ( 1000) specifies the grid cell size in meters, because that is the linear unit of the SRS associated with the location column. 第一个参数(1000)以米为单位指定网格单元格大小,因为米是与location列相关联的SRS的直线单位。
A linear unit based on the length or width of the human hand. To govern with the right extent of tolerance is an art. 长度单位以手掌的长度或宽度为依据。掌握宽的尺度是一门学问。
A linear unit of measurement ( equal to 6 feet) for water depth. 测量水深的单位等于英尺。
A linear unit of the size of type slightly larger than an em. 活字大小单位略大于一全身。
Imported pneumatic components, linear motion axis unit, to ensure uniform pressure force force plane in the box. 采用进口气动元件,光轴直线运动单元,保证压合力在盒面均匀受力。
A linear unit of distance in metric terms. 公制术语定义的长度单位。
Beam counterbalance Performance of Linear Motor Pumping Unit and Beam Pumping Unit 直线电机抽油机与游梁式抽油机工作性能对比
Design of the High Speed Linear Feed Drive Unit 高速直线进给单元设计
The experimental techniques of the main performance of high-speed linear motion unit based on linear motor are study preliminarily; 对高速直线运动单元的主要性能评价实验技术进行了初步研究;
Application of Linear Measuring Unit with Distance Reference Mark on Siemens840D/ 810D/ FN-NC System 带距离编码参考点标志的线性测量装置在SIEMENS840D/810D/FN-NC数控系统中应用
Theory on Approximation Linear Combination of Unit Orbital& The Effect of Terminal Functional Groups on the Electronic Structures of Acetylene Systems 单元轨道线性组合近似理论&端基官能团对聚乙炔体系电子结构的影响
In order to model the store and delay effect of watersheds on flow, the discharge-time histograms were routed through a linear reservoir and unit hydrographs were obtained. 考虑到流域对径流的调蓄作用,利用线性水库将流量-时间关系转换成单位线。
In high-speed linear motion unit, linear motor will substitute the ball screw, which is an irresistible trend. 在高速直线运动单元中,由直线电机直接驱动代替由滚珠丝杠副将旋转运动转化为直线运动已是大势所趋。
The experiment, which is designed to measure the positioning accuracy of high-speed linear motion unit by means of laser interferometer, is described; 详细探讨了将双频激光干涉仪应用于高速直线运动单元定位精度测试的实验技术。
An improved repetitive control algorithm was developed to improve tracking accuracy for a linear servo unit in a numerical piston lathe. 为了提高非圆数控车削系统中直线伺服单元的跟踪精度,该文提出了一种改进的离散重复控制算法。
Design and Experimental Research on Permanent Magnet Linear Synchronous Servo Unit Used in NC Machine Tool Feeding System 机床进给用永磁同步直线伺服单元的设计与实验研究
A proof-test is done after designing the linear cutting feed unit. 设计了直线伺服进给单元相应的机构,并根据实际加工情况对其进行了校核。
Design of the linear unit applying in smart microstrip array 智能天线微带天线阵列中线阵单元设计
A large power combined compensated driving linear servo unit based on the principle of voice coil motor is presented. Its force constant, maximum driving force and maximum driving current are 82 N/ A, 820 N and 10A respectively. 依据动圈电动机的基本原理,研究开发了一种大推力复合补偿驱动的直线伺服单元,其推力常数为82N/A,最大驱动电流为10A,最大推力820N。
Furthermore, the theory of repetitive control was used to design the controller available for the linear servo unit, whose design details and stability analysis were presented. Finally, simulation analysis of the controller performances was carried out. 应用重复控制理论设计了适于直线伺服单元的重复控制器,给出了详细的设计过程和稳定性分析,对控制器的性能进行了仿真分析。
Experimental Research on High Speed Linear Unit for NC Machine Tools 高速数控机床直线进给单元的实验研究
By means of the additivity principle of linear systems, the ideal input is represented to be the linear combination of unit step response starting from different sampling periods, the combination coefficients are obtained and the numerical expression of the tracking control law is given out. 利用线性系统的叠加原理,将理想输入表示为从不同采样时刻开始的系统的单位阶跃响应的线性组合,求得组合系数并由此导出了跟踪系统的控制律。
The linear motor not only simplifies the construction, but also increases the speed, acceleration, sensitivity, rigidity and accuracy of the linear motion unit. 由直线电机构成的高速直线运动单元既可简化结构,又可提高直线运动单元的速度、加速度、灵敏度、刚度和精度。
Research on the velocity and acceleration of linear feed unit of zero transmission machine tools 零传动机床高速直线数控进给单元的速度与加速度特性研究
Repetitive control based linear servo unit under YBT CIMS Environment 集成制造系统中基于重复控制的直线伺服单元
There is linear relationship between unit cutting force and cutting velocity. 单位切割力与切割速度之间呈线形关系,切割速度越大,单位切割力也越大。
Linear electrical pumping unit is a revolution of the energy transformation and delivery mode, can improve the efficiency of pumping unit, can realizes the smooth pumping parameters and the suspension center movement variation with pumping situation, and gives a good foundation for intelligent pumping unit. 直线电磁抽油机改变了过去的能量转换模式,不但提高了效率,而且能实现抽汲参数无级调整,进而能根据采油的需要调整悬点运动规律,为智能化创造了很好的条件。
This paper introduced mainly the first linear motor intelligent pumping unit at home principle, the structure of each part and whole unit's performance. 着重介绍了国内外第一台直线电机智能抽油机的原理、各部分结构和整机的性能测试情况。
Step solving strategy includes three steps: slack integer variable linear programming, heuristic adjustment, solving mixed integer linear programming unit commitment model with some uncertain condition units. 分步求解策略分为三个步骤:松弛启停变量线性规划、启发调整、求解带有部分不确定启停状态机组的混合整数线性规划模型。
The MPS-CCD Driver image acquisition module internal integration of the linear CCD sensor-driven acquisition unit and SPI bus communication interface, when the system was used, further signal acquisition part of the hardware circuit design, greatly reduces the difficulty of system design. MPS-CCDDriver图像采集模块内部集成了线阵CCD传感器、驱动采集单元和SPI总线通信接口,使用时,不需要再进行信号采集部分的硬件电路设计,大大降低了系统设计的难度。