对削

The torsional vibration, longitudinal vibration and ben- ding vibration of slender shaft in lathing because of axial feeding are calculated and analyzed.

对长细轴车削过程中，刀具轴向进给所产生的扭转振动、纵向振动、弯曲振动进行了计算与分析。

B. when precision testing equipment, the adjustment process: in the assembly process and equipment are completely assembled to precision testing and adjustment, such as boring bed in the installation process after grinding levelness and straightness calibration, an adjustment and measurement and cannot fully reflect the true error, and requires at least three times and measurement, can eliminate stress, and each must adjust time intervals, it takes about three days.

B。设备精度检测时的调整过程：设备在组装过程中及完全组装后均需进行精度检测及调整，如对镗床床身导轨磨削后在安装过程中的水平度和直线度的校验，一次调整与测量并不能完全反映出其真实误差，而至少需要三次调整和测量，才能消除应力的影响，且每次调整都需有时间间隔，故需时约3天。

In this paper, the optimal design of disc\|milling cutter parameters is studied, based on analysis of machining helicoids used disc\|milling cutter, and the feasibility of this systems was validated by some examples.

在分析碟状铣刀铣削螺旋面的基础上，对刀具参数的优化设计进行了研究，并通过实例计算验证了此优化计算方法的可行

By the experiment of high-speed milling aluminium alloy with carbide end milling cutter,the method of helical chip formation was researched.

通过硬质合金立铣刀高速加工铝合金的铣削试验，对螺旋状切屑的成形进行了研究。

It is a useful aid for the analytical of end milling process design and optimization.

并且可以对铣削工艺的设计和优化提供帮助。

Profile modeling ; Curve ; Curved surface ; Motion orbit ; Outside curve

因此，有必要对靠模曲线与曲面轮廓线之间关系做以探讨。以仿形车削回转球面为例，讨

objectiveto search a simple, safe and effective method for correction of prominent mandibular angle and malar under localanesthesia.methodsaccording to the patient' s condition with prominent mandibular angle and malar, abrasive osteoplasty was performed using the special designed grinding burs with protecting sheath through intraoral incisions under local anaesthsia.resultsfrom 2004 to 2008, we have performed 35 patients with prominent mandibular angle and malar using this method.

目的：探讨一种安全、简便、有效的下颌角肥大及颧骨突出矫治术。方法：根据下颌角肥大及颧骨突出的情况，在局部浸润麻醉下，由口内入路，应用颌面骨电动手术器械行下颌角、颧骨磨削术。结果：2004～2008年，我们共实施35例该手术，所有病例治疗过程顺利，未出现骨折、大出血等并发症，经过1～36个月的随访，所有患者均对术后效果满意。

Mill the two sides of the plate to meet the requirements concerning width, edge parallel degree and groove shape.

对钢板两边缘进行双面铣削，使之达到要求的板宽、板边平行度和坡口形状。

Parts such as these are prone to twist on a magnet during cutting operations, especially when cutting forces are directed parallel to the face of the magnet (which occurs when milling about a part's periphery), versus down toward the magnet.

部件， 如这些很容易扭曲的磁铁切割行动期间，尤其是当切削力是针对平行面对磁铁（其中发生在铣削关于部分周边），与下跌对磁体。

All we have to do is clean and peel them.

我们所需要做的只是对他们进行清洗或削皮。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。