查询词典 numerical system

More than ten years ago,"the negative day" the numerical control line cutting engine bed first applies and the actual production, starts the control bench is uses the transistor separative element assembly to become, after but uses the integrated circuit, now to is using the direction which the microcomputer controls to develop, Therefore this definition design "the electrical fire colored thread cutter automatic control" is by 8031 shrapnel machine took the control core, step-by-steps the electrical machinery achievement to actuate the electrical machinery, the diffraction grating a closed-loop control system which constitutes as the position examination part.

十多年前，&负旦型&数控线切割机床首先应用于实际生产，最早控制台是由晶体管分离元件组装而成，逐渐采用集成电路，现在正向采用微型计算机控制的方向发展，因此本论文设计的&电火花线切割机的电气控制系统&是以89C55单片机作为控制核心，步进电机作为驱动电机，光栅作为位移检测元件而构成的一个闭环控制系统。

A new kind of fix-axis numerical control filament winding machine is developed, which has double-layer winding function. The machine consists of spindle, carriage, tension control, and control system.

研制了一种可实现双层缠绕功能的新型五轴联动数控缠绕机，包括收线系统、放线系统、张力器和控制系统4个部分。

As the motor of direct current had good characteristic of adjusting the speed, the numerical control lathe system adopted the servo motor of direct current in the past.

由于直流电动机具有良好的调速特性，以往数控机床系统均采用直流伺服电动机。

The effects of the main parameters on engine performances are studied by numerical simulations and experiments carried out on a single-cylinder engine with this system.

通过试验和理论计算研究了各主要参数对发动机性能的影响，并测录了发动机的主要性能。

So, the study on numerical control last-making machine with high reliability and low cost and the development of shoe last CAM system are very necessary. On the other hand, the research results can be used in other fields.

因此，研制实用、可靠、低成本的数控刻楦机和开发相配套的鞋楦CAM系统具有重要的现实意义，并具有较好的推广价值。

On the basis of the analysis,the self-focusing properties of the chirped Gaussian pulse in the chirped pulse amplification system were analyzed and discussed,and the numerical calculations were performed.

在此基础上，针对啁啾脉冲放大系统中的啁啾高斯脉冲，对其全光束自聚焦特性进行了计算模拟和分析讨论。

In order to investigate the flow characteristics of Isothermal jet into cross-flow for a safety injection inclined tube in the reactor cooling system, the numerical simulations were carried out at various velocity ratio between jet and main flow by using the commercial computational fluid dynamics software CFX.

针对核反应堆冷却剂系统中的主管道安注斜接管等温横向射流问题，应用计算流体力学商用软件CFX进行等温横向射流流动的数值模拟，得出了典型运行工况下的三维流场分布。

The numerical results show system changed rapidly near the edge of the safety areas, and the initial condition far away the edge can postpones the peak time.

数值结果表明，系统状态在接近安全域边界时变化很快，而初始状态远离安全域边界时，则可将对应的失稳时刻推后。

Objective To simplify the structures of human upper extremity into a two rigid-body system by establishing a dynamic model based on a numerical equation approach.

目的 简化人体上肢结构，建立两刚体系统动力学模型，并对其进行数值求解。

Since the elevation of the exposure station is found, the plumb-line coordinate system can, in the sense of numerical calculation, be established however.

因為攝影高度既經决定，我們可以建立一垂綫坐標系，與像片在空間的轉動無關。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐