直线运动

Contour Error of linear and circular motion is caused by following error of each axis position servo system.

由于位置伺服系统跟随误差的存在，导致直线和圆弧运动时产生轮廓运动误差。

Then, based on the configuration and design principle of the wafer handing robot, the model of the wafer handing robot arm is established. The radial linear concertina motion of the wafer handing robot is analyzed, a type of mechanism that can implement the function is proposed, furthermore, the kinematics of the mechanism is analyzed.

其次，根据硅片传输机器人的构型与设计原则，建立了机器人手臂的模型，对硅片传输机器人的径向直线伸缩运动展开分析，提出了实现该运动的机构，并对机构进行了运动学分析。

On this foundation, the followingfew problems are resolved. Firstly, we have a kinematic density formula for pairs of needles by using thekinematic density formula for pairs of oriented lines. The geometric probability thatthe random pairs of needles intersect at a point in convex body K is considered.

在此基础上，重点解决了以下几个问题：首先利用R~2上有向直线偶的运动不变密度公式，得到了针偶的运动不变密度公式，考虑了针偶与凸体K相交且针偶的交点属于K的这样一个几何概率问题。

However, Pro/E has a limitation in simulating chain transmission, it can simulate linear and circular motion but not curvilinear motion, so types like bicycle chain transmission can't be simulated by Pro/E

但是PROE在链传动仿真方面有重大缺陷落，不能解决链传动的曲线运动仿真，而只能进行链传动的直线和圆弧运动仿真，因此在类似于自行车传运链这类的不规则的链传动仿真将无法进行

AW Series Laser Cutting Bed meet the demands of large-area cutting in garment field, adopts the hardened stable machine tool made of reinforced material; linear guides and accurate gear driving system is used to assure the stability and precision. Open, netty and rolling workbench made of stainless steel and of high flatness is easy to operate and will never fray.

AW系列激光裁床实现了大幅面切割裁片的加工需求，采用了机床级稳重扎实的工作底盘，确保快速运动时的稳定性和精确性，运动系统采用直线导轨导向和精密齿轮、齿条传动，确保加工精度，采用经特殊处理的全敞开式不锈钢网状工作平台，操作方便，永不磨损。

AW Series Laser Cutting Bed meet the demands of large-area cutting in garment field adopts the hardened stable machine tool made of reinforced material; linear guides and accurate gear driving system is used to assure the stability and precision. Open netty and rolling workbench made of stainless steel and of high flatness is easy to operate and will never fray.

AW系列激光裁床实现了大幅面切割裁片的加工需求，采用了机床级稳重扎实的工作底盘，确保快速运动时的稳定性和精确性，运动系统采用直线导轨导向和精密齿轮、齿条传动，确保加工精度，采用经特殊处理的全敞开式不锈钢网状工作平台，作方便，永不磨损。

Which can make the movement pair have optimal position accuracy and roughness of work piece?

导轨副用直线滑动导轨，运动灵活、精度高、为提高抗震性，采用阻尼块的结构，使运动副有最佳的定位精度和工作精度。

Features of technology: 1 Reasonable and firming structure of superhigh pressed components wholly adjusting high-quality sanforized materials with antisepsis and wearability .2 Low reversing rate of superhigh pressed Vessed doable-agency piston long durability 3 Driven by servo mator high precision ball screw and linear track ensuring slability .

技术特点：结构上采用套装复合缸，选用高强度材料，利用特殊的防腐耐磨处理，结合大排量低频率，使其使用寿命更长，系统压力更加稳定，运动部件采用伺服电机，配置滚珠丝杠和直线导轨运动精度高。

In this thesis, the mathematic model of servo system is set up, the contour error in straight line and circular interpolation movement on the duplex servo-system is analyzed, and the method to raise the contour accuracy of the movement track is put forward.

本论文建立了数控伺服进给系统的数学模型，对双轴进给系统在作直线和圆弧插补运动时形成的轮廓误差进行了数学分析，并指出了提高试验台运动轨迹轮廓精度的方法。

Americans enjoy many kinds of sports, such as bowling, skating, skiing, swimming, diving, skin diving, scuba diving, surfing, bicycling, car racing, drag racing, running, hang gliding, hocke, golf, and tennis.

美国人喜欢各种各样的运动，比如保龄球、溜冰、滑雪、游泳、跳水、潜水、戴水肺的潜水、冲浪、骑自行车、汽车竞赛、（在短距离直线跑道上举行的）汽车加速赛、赛跑、悬挂式滑翔运动、冰球、高尔夫球和网球等。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。