杠

According to the principles of tooth meshing and manufacturing helicoi ds, a mathematics model is constructed to reflect the manufacture process of nut , and the formula of the grinding wheel section is developed. The parameters of the section are obtained through numeral arithmetic; moreover the parameters of the dresser are worked out. Based on these work, the solid model of the ball scr ew nut, grinding wheel and tooth dresser are developed in the Pro/E software, wh at's more, the process of the dressing...

根据螺旋面加工原理、齿形啮合原理及回转面砂轮加工螺母工艺建立了相应的数学模型，并推导出砂轮截形的计算公式；采用数值计算方法求解砂轮截形参数，进一步得到修整器靠模板的参数；在此基础上，利用Pro/E软件对大导程滚珠丝杠螺母、砂轮和砂轮修整器进行了实体建模，并对砂轮的修整过程和螺母的加工过程进行了运动仿真，有效地验证了砂轮截形的计算结果。

Such as fuzzy optimization of the outer ring of Three Axes Simulant Table, micro-positing tool rest driven by PZT and flexure hinges combining screw with slide.

解决了三轴仿真转台外框架，压电陶瓷驱动微进给刀架结构以及丝杠与溜板连接用柔性铰链结构的模糊优化设计问题。

In the left tool carriage, the ball leadscrew、the servo motor and single gear reducer were displaced,and the coordinated movement about X and Z axis could be implemented by semi-closed loop control of SINUERRIK 802D numerical system.

左刀架采用滚珠丝杠、伺服电机和一级齿轮减速，并利用SINUMERIK 802D数控系统的半闭环控制实现左刀架的X轴和Z轴联动控制，机床改造后，大大扩大了机床的加工范围，同时提高了生产效率和加工精度。

Buyers bought a pair of shoes, a little above the tongue bar feet, I have promised to give him for pairs of the past, but we are committed to postage, buyers get the goods agreed to praise, and then I also played postage shall give him, he received After the legislation to the section of the winding, and then gave a poor rating, and this how to do?

三月 18th， 2010 淘宝有卖啊|淘宝网首页买家买了双鞋子，鞋舌上面有点杠脚，我已经答应给他换双过去，而且邮费我们承担，买家收到货后答应好评，然后我把邮费也打款给他了，他收到款后立该下线，然后给了个差评，这该怎么办？

Products include: for the SUV, MPV, jeeps, pickup trucks of anti bars, pedals, luggage rack and spare tire cover, the end of ladders, fenders, towing hooks, searchlights and used-car round Mei, the gate pedal, the exhaust pipe tail kits, engine under-boards, stand lock stent, the decorated doors of the series.

产品包括：用于SUV、MPV、吉普车、皮卡车的防撞杠、脚踏板、行李架、备胎罩、尾梯、挡泥板、拖车钩、射灯架及用于轿车的轮眉、门边踏板、排气管尾套、发动机下护板、排挡锁支架、车门饰条等系列。

Products include: for the SUV, MPV, jeeps, pickup trucks bull bars, pedals, luggage rack, spare tire cover, tail ladder, fender, towing hooks, searchlights and used aircraft wheel cars eyebrow, gate pedal, the exhaust pipe tail kit, the engine under the sheeting, food stalls lock frame, door decorations, etc. series.

产品包括：用于SUV、MPV、吉普车、皮卡车的防撞杠、脚踏板、行李架、备胎罩、尾梯、挡泥板、拖车钩、射灯架及用于轿车的轮眉、门边踏板、排气管尾套、发动机下护板、排挡锁支架、车门饰条等系列。

Our production is a specialized exterior of the car manufacturers, including products : Anti Advisory spare tire cover baggage-luggage side pedal staircase tail end of the exhaust pipe tail kit rearview mirror under the hood Dengzhao fender-boards trailer hook-eyes lighting spotlights rain guards, and other products.

本厂是一家专门生产汽车外饰件的厂家，产品包括：防撞杠备胎罩行李架行李箱侧踏板尾梯尾翼排气管尾套后视镜罩灯罩挡泥板下护板拖车钩射灯射灯架睛雨挡等系列产品。

Our company is professional in producing Auto accessories including Grille Guard, Side Bar, Side Step, Roof Rack, Rear Ladder, Spare Tire Cover and so on, matching for SUV, MPV, Jeep, Pick Up Van, Truck, ATV.

本公司是一家专业生产汽车外饰件的厂家，主要产品包括：防撞杠，脚踏板，尾梯，备胎罩，行李架等系列产品，适用于SUV、MPV、吉普车、皮卡车。

The focus of this design is automatically drilling vertical milling machine design, including the mechanical structure design, mechanical drive system design, and the choices and design of components on a table ,it is include: screw, timing belt, and the stepper motor Selection Guides; circuit is the main elements of the last part of the design , the control unit such PLC as the main can be quickly and easily complete the task of feeding the PLC's work, and designs the principles and procedures required by the design.

本设计的重点是自动立式钻铣床的设计，包括了机械结构设计、机械传动系统的设计，并对工作台的元件进行了选择和设计：包括丝杠、同步齿形带、步进电动机和导轨的选型；最后部分则是电路设计方面的主要内容，以PLC为主体的控制单元可以快捷方便的完成进给任务，对PLC的工作原理和本设计所需要的程序进行了设计。

For the 2009 model year we see the G class will get a slightly redesigned grille with the three-bar layout but the most significant change will be under the hood with the power output of the G500 increased to 382hp and 530Nm of torque whilst the G55 AMG now gets 500hp.

对于09款车型，G级车的外观略有改进，格栅改成了三条横杠，但最显著的变化还是在车辆内部，G500的输出功率增加到382马力，扭矩提高到530牛米，而G55 AMG现在的功率达到500马力。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！