旋转轴

现在，如果你去计算它的旋度的话，得到，也就是2k，k是旋转轴，2是角速度的两倍。

Now , if you compute the curl of this guy , you will get zero , zero , two , two k.And so k is the axis of rotation , two is twice the angular velocity .

更精确地，curv，v值为角速度的2倍，或许我应该说，角速度向量，因为它带有旋转轴。

More precisely curl v measures twice the angular velocity , or maybe I should say the angular velocity vector because it also includes the axis of rotation .

结论：①颞浅动脉额支E点可作为血管蒂旋转轴点；

Conclusions : The point E of the superficial temporal artery could be an axle center of vascular pedicle .

毫米波耦合腔行波管非旋转轴对称PPM聚焦系统中的横向磁场

The Transverse Magnetic Fields in an Asymmetric PPM Focusing System for Millimeter-Wave Coupled-Cavity TWTs

本文提出了一种主射线与旋转轴成任意入射角度的非常规的三维CT投影方法。

A non conventional projection method for three dimensional CT is described in which the angle between the main X ray beam and the rotation axis of object is arbitrary .

提出了一种主射线与旋转轴成45°入射角、面阵探测器与旋转轴垂直的三维CT投影方法。

This paper describes a projection method for three - dimensional CT in which the angle between the main X-ray beam and the rotation axis of object is 45 ° .

方法：对72例颌面骨折患者采用螺旋CT扫描，使用不同旋转轴，观察不同角度骨折的三维病变图像，结合临床进行CT图像分析。

METHODS : 72 patients with maxillofacial fractures were scanned by three dimensional ( 3-D ) spiral CT , The three dimensional images of maxillofacial fractures were detected by using various rotation axes .

该产品在实现刀具沿三个直线轴（X/Y/Z）运动的同时，实现了工件沿两个旋转轴（A轴和C轴）的回转和摆动。

The product can realize movement along the three straight axis ( X / Y / Z ) as well as realizing workpiece rotation and swing along the two rotary axes ( A-axis and C-axis ) .

低误差的陀螺仪旋转轴轴承所使用的润滑油往往用量不足，不能形成足够的EHD油膜。

Low-error gyroscope spin axis bearings often contain insufficient lubricant quantity to form full EHD films .

目前，在制造业中所使用的大多数五坐标数控加工中心，其中的两个旋转轴都是绕两个坐标轴旋转，即X轴、Z轴或者Y轴、Z轴。

Nowadays , most five-axis NC machining centers used in manufacturing have the characters that two rotating axes rotate round two axes of the coordinate , viz . X-axis Z-axis or Y-axis Z-axis .

采用SOC技术将数据采集与敏感弹性元件置于一体，在旋转轴上完成了扭矩信号的智能采集，提高了测量精度。

SOC is used to integrate data acquisition and sensor signal sampling in one module , thus the signal acquisition is achieved on the rolling axis and the precision is rised .

该研究可以为基于抛光头旋转轴扭矩变化的CMP终点检测方法提供理论依据。

The research results provide a theoretical foundation for the CMP endpoint detection method based on the change of the torque of the polishing head rotational spindle .

设计并实现了一套基于现有数字X射线成像系统的微型CT系统，提出了一种简单有效的旋转轴定位的方法，系统测试表明该方法可以实现旋转轴与图像中心的精确对准。

A micro-CT system based on a digital radiography system is implemented and an effective and simple method to locate the rotating axis is proposed . The performance testing result shows that this method can align the rotating axis with the image center precisely .

本系统设计了一种基于四轴联动（X、Y、Z平动轴和C旋转轴）的机械平台，可以同时满足激光切割、激光表面处理和激光焊接等加工方式的运动要求。

A mechanical platform based on the simultaneous movement of the four axes ( X , Y , Z-translation and C-revolving ) is developed in the system , which is suitable for the simultaneous movement of laser cutting , laser surface modification and laser welding .

根据作者的实际体会就应用UG软件针对五轴加工中心的两个旋转轴的定义和程序开头初始化的后处理问题作了一些探讨。

In this paper we elaborate some discussion and writer 's actual experience aimed at post process of using UG software to identify two rotary axes of five-axis hexapod machine centre and initialize beginning of Procedure .

如果力矩是这样地作用于一圆盘上，即力矩的轴与圆盘的旋转轴方向一致，则力矩的方向与AB线平行。

If a torque is applied to the disk in such a fashion that the axis of the torque is the same as that of rotation of the disk , the direction of the former will be parallel to AB.

旋转轴点为腓动脉外踝后上方（5cm）的最远侧肌间隔穿支。

The flap was supplied by the lowermost perforator of peroneal artery in the posterolateral septum . The pivot point was located at 5 cm above lateral malleolar tip .

以一台同步发电机的d-q旋转轴为参考轴，分析各电气设备之间的耦合关系，从而建立了完整的船舶电力系统整体数学模型。

The d-q rotary shaft in a synchronous generator is used as a reference shaft , and the coupling relations of different electric devices in the marine power station are analyzed .

方法：对18例中心型肺癌的患者行MSCT造影增强检查，采用实时螺旋薄层CT扫描，在独立工作站行支气管动脉三维重建，使用不同的旋转轴观察支气管动脉的空间解剖细节。

Methods : MSCT angiography was performed in 18 patients with central lung cancer , with real time helical thin slice CT scanning . Three dimensional images of bronchial artery were processed at the console workstation . Spatial anatomical characters of bronchial artery using different rotation of view were observed .

提出了一种基于SolidWorks的转镜平衡分析方法，该方法利用SolidWorks的质量评估功能得到转镜的质心坐标和中心惯性主轴与旋转轴的夹角以此作为转镜动平衡性能评价指标。

A balance analysis method of rotating mirror is proposed based on SolidWorks , Which utilizes the quality assessment function of SolidWorks to get the centroid coordinates and the angle between rotation axis and center inertia main axis as the criterion of dynamic balance .

水平平移可以实现旋转轴与图像中心的精确对准，本文提出了一种旋转轴精确定位的方法，定位精度可达0.01mm。竖直平移可以实现放大倍率的选择，放大倍率在1.77~2.37之间可调。

Horizontal translation , vertical translation and rotation is used to align the rotating axis and image center , choose the magnification factor and rotate the models respectively .

方法对25例面部轮廓形态异常者行多层螺旋CT头颅扫描，层厚1.0～2.0mm，应用表面投影显示法（SSD）重建三维图像，从不同旋转轴对不同改型部位的三维图像进行观察。

Methods A total of 25 patients with disharmony facial pattern were examined using spiral CT with the slice thickness of 1.0 ~ 2.0 ? mm . The surface shaded display ( SSD ) method was used for reconstruction of the three-dimensional ( 3D ) images .

该U-型通道的横截面为50mm×50mm，弯道的平均半径Rc与通道的水利直径D的比值为0.65，旋转轴与弯道的曲率轴线平行。

The U bend duct has a cross section of 50 mm × 50 mm and a ratio of bend mean radius R c to hydraulic diameter of the duct D of 0.65 . The rotation axis is parallel with the bend axis .

本厂主导产品为：IVAK品牌旋转轴用骨架油封、O型圈，配套生产汽车、摩托车减震器用橡胶件。

Our leading products are : IVAK brand rotation axis with seal , O-ring , supporting the production of automobile and motorcycle shock absorber rubber parts .

通道的横截面积为50mm×50mm，弯管的平均半径与水利直径的比值为065，旋转轴与弯管的曲率轴平行。

The U-bend duct has a cross section of 50 mm × 50 mm , and the ratio of the mean radius of the bend to thd hydraulic diameter of the duct is 0 65 , the axis of rotation is parallel to the bend axis .

结合云降水粒子谱（采用最常见的M-P分布），对旋转轴取向不同的椭球雨滴群引进不同的雷达截面，建立不同的雷达气象方程，并定义了相应的雷达反射率因子。

In combination of the cloud precipitation particle spectrum ( by using the most common M-P distribution ), different radar cross section are introduced for the spheroid raindrop groups having different oriented axes so as to establish different radar meteorological equations and define the corresponding radar reflectivity rate factors .

橡胶挤出机螺旋旋转轴断裂分析

The failure analysis of the screw turning axle of rubber extruder

光学跟踪仪器镜筒的振动频率与旋转轴支承

Resonant Frequency and Altitude Bearing of the Optical Tracking Telescope Tube

倾斜旋转轴五轴机床运动学模型的设计

Design of Kinematics Model of Five-axis Machine Tools with Titling Axis

一种新型旋转轴唇形密封圈

A New Type of Lip-shaped Seal Ring for Rotary Shafts