刀对刀

By considering torque characteristics of variable-frequency motors and mesh stiffness as well as backlash nonlinearity in gear transmission,a dynamics model for the cutting system of shield tunneling machine with redundant drives was established. The fluctuation characteristics of torque loads and dynamic cutterhead driving torque in composite strata were analyzed.

复合地层掘进扭矩载荷突变是造成盾构机掘进过程中堵转停机的直接原因，考虑盾构机刀盘驱动变频调速电机特性、转矩传递过程中齿轮啮合刚度及齿侧间隙等非线性因素，建立冗余驱动的盾构机刀盘切削系统机电耦合动力学模型；针对典型复合地层地质条件，对盾构机在上软下硬地层掘进过程中刀盘驱动转矩动态特性进行仿真分析。

India, Middle East, there are many kinds of swords with reinforced tip. For example, katar in India, has very sharp and thick tip, made by European steels and the native Damascus steels.

印度，中东一带，也有著很多带有reinforced tip 特性的刀剑，如印度武器中的katar，其尖既厚又锋利，用料有来自欧洲刀剑的钢材（对，就连古文明国度的印度人，也会用欧洲刀剑的钢材），及土产的大马士革钢。

If one considers an article of manufacture as, for example, a book or a paper-knife — one sees that it has been made by an artisan who had a conception of it; and he has paid attention, equally, to the conception of a paper-knife and to the pre-existent technique of production which is a part of that conception and is, at bottom, a formula.

试拿一件工艺品------例如一本书或者一把裁纸刀-----来说，它是一个对此已有一个概念的匠人制造的；他对裁纸刀的概念，以及制造裁纸刀的前此已有的工艺（这也是概念的一部分，说到底，即一个公式）同样已心中有数。

Motion synchronization between tool in X direction and principal axis rotation was controlled by electronic gearbox in cam turning. And profiling mechanism could be superseded by servo tool-holder. Linear motor direct drive servo tool-holder was designed, and host-slave control system with PC and DSP was developed for the require of high-speed and realtime servo. The technical process was analyzed in cam turning. Servo tool holder with tool swinging and principal axis variable rotate speed were presented to keep constant cutting angle and speed.

将电子齿轮箱用于凸轮车削加工系统的传动，以伺服刀架取代了传统加工的靠模装置，实现了刀具X方向直线运动与机床主轴转动的同步控制；设计了直线电机直接驱动的伺服刀架及基于PC与DSP构成的上—下位机控制结构，采用DSP进行实时控制以满足高速伺服需要；对凸轮加工过程的工艺特点与恒角度、恒速度车削进行研究，提出了具有刀具摆动功能的伺服刀架与机床主轴变转速运动方案。

And can be cut, and a variety of materials, precision cutting demanding the ability to use pulse laser cutting die computer printer and the computer automatically scimitar machine, can be used in cutting die plus scimitar machine cutlasses, fast, and accurate.

并可切割多种材料，而且，对精度要求较高的切割，还可采用脉冲切割将激光模切版的电脑绘图机与电脑自动弯刀机连在一起，可在切割模切版的同时，用弯刀机弯刀，又快捷，又准确。

Free exercise against multiple attacks (4 attackers), Futari-gake, Tanto tori and Kumi Ken (based on Seidojuku weapon training syllabus).

同上，-对多人攻击之自由技、二人挂、短刀取及组太刀（跟随《正道塾》刀杖练习范围）。

Free exercise against multiple attacks (5 attackers), Tanninzu-gake, Tanto tori, Taichi tori, Jo tori and Kumi Jo (based on Seidojuku weapon training syllabus).

同上，-对多人攻击之自由技、多人挂、短刀取、刀取、杖取及组杖（跟随《正道塾》刀杖练习范围）。

C type cutter compensation method is also studied here, including analyses of detailed path transit situation, transit vectors and the whole process of establisment, implement, and finishing of C type cutter compensation.

本文同时还论述了C功能刀具半径补偿的实现方法，给出了详尽的C刀补轨迹转接情况分析和各种C刀补转接矢量的计算公式，并对C刀补的建立、进行和撤销过程进行了具体分析。

On the analysis process of kinematical chain of machining centers, we discussed their workspace briefly.

本文对加工中心自动换刀装置的各种换刀时间的计量和标示方法也做了详细讨论，并提出了合理、实用的换刀时间计量和标示方法。

Screw on the choice of friction loss, high efficiency, high precision, long life of the ball screw, the electrical selected stepper motor, motor and the ball screw with gear deceleration.The main to modify the lathe is to modify the portrait, horizontal enter to the system in the Whole modification process and choose the automatic knife rest and be processed the thread need by pulser. The whole control system with the CPU of JKW-15T is to control the machine for center, through a plait distance drive tool machine an equipments to carry on control to attain need of process degree.

整个改造过程主要对车床纵、横向进给系统进行改造，丝杠选用摩擦损失小，效率高，精度高，寿命长的滚珠丝杠，电机选用步进电机，电动机与滚珠丝杠用齿轮减速；刀架改造成能自动换刀的回转刀架，由脉冲发生器来加工所需要的螺纹；整个控制系统以JKW-15T型号的单片机为中心，通过编程对机床的驱动设备进行控制以达到所需要的加工程度。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了