固定轴

The measuring device is structured by including a He-Ne laser; a beam expander, a soft aperture slot and a off-axis parabolic mirror to be measured are arranged in turn along the direction of the emergent laser beam direction of the He-Ne laser; a standard cross hair and a micro objective are arranged in turn on the direction of the reflected beam of the off-axis parabolic mirror; the micro objective is arranged on the focus of the off-axis parabolic mirror; the focus is imaged on an area array CCD; the output end of the area array CCD is connected with a computer; the off-axis parabolic mirror is fixed on a five-dimensional electric adjusting frame.

一种离轴抛物面镜点聚焦能力测定装置和测定方法，测定装置的构成包括：一台He-Ne激光器，沿该He-Ne激光出射激光束方向依次设置扩束器、软边光阑和待测的离轴抛物面镜，在该离轴抛物面镜的反射光束方向依次设置标准叉丝和显微物镜，该显微物镜位于所述的离轴抛物面镜的焦点，所述的焦点成像于面阵CCD上，该面阵CCD的输出端接计算机，所述的离轴抛物面镜固定在一五维电动调整架上。

When a capillary tube, in whose inner hole an optical fiber has been fixed and whose axial deviation amount between an outer peripheral surface of the capillary tube and a core center of an end surface of the optical fiber is 1.5 mum or less, is inserted into the insertion portion of the thin tube and the end surface of the optical fiber is fixed at a position at which a distance of the end surface to a focal point position of the partially spherical lens becomes -40 mum or less, emission light has an emission light bend of 0.2 DEG or less with respect to the center axis of the thin tube.

当将光纤固定在内孔且外周面与光纤的端面的纤芯中心的轴偏移量在1.5μm以内的毛细管插入细管的插入部，并且将光纤的端面固定于部分球面透镜的焦点位置±40μm以内的距离的位置上时，出射光曲率为出射光相对细管中心轴在0.2°以内。

One or more plane sections (8,9) and part cylinders (10,11) connecting to the plane sections (8,9) are formed at the outside (7) of the capillary using for fixing the fiber, all the part cylinders (10,11) are formed with a single center axis and the same radius, meanwhile a patchhole (3) of the inserting fixed fiber (2) is formed in the deflected position of the center axis and in the vertical direction of the first plane section (8) which is used as the standard.

在光纤固定用玻璃毛细管(1)的外面(7)形成有一个或多个平面部(8、9)和与该平面部(8、9)连接的一个或多个局部圆筒面(10、11)，该所有的局部圆筒面(10、11)都是以单一的中心轴和相同半径形成的，同时在与作为基准的第一平面部(8)垂直的方向上从中心轴偏离的位置上形成有插入固定光纤(2)的插入孔(3)。

2The spine fracture model is a type of instability spine model, it is satisfacted for the test. The new PETF can offer good three-dimensional stabilization to instability fracture spine.it has clinical feasibility . [3]To be a minimally-invasive surgical procedure ,the PETF assistanted microendoscopy can combine decompression and reduction with external fixation for the injuried vertebral colunm without segments fusion.

(1)骨折模型B组是不稳定性骨折模型，满足实验的要求，新型脊柱外固定器能为不稳定性骨折脊柱提供良好的三维稳定，具有临床可行性；(2)轴向压缩实验A组、C组和D组之间的差异均具有显著统计学意义，说明单纯新型脊柱外固定器是一种弹性固定，抗压刚度不够，但新型脊柱外固定器结合PVP术后抗压能力明显，但较正常标本仍有一定的差距，手术后短期内有必要适当腰部支柱保护；(3)新型脊柱外固定器联合MED和PVP术治疗胸腰椎骨折的微创技术能减轻病人的痛苦、达到胸腰椎骨折的治疗目的和效果，并具有非融合性固定的特点，具有较大的临床推广应用价值。

3To introduce a minimally-invasive technique of a new percutanous external spinal fixation assistanted minimally-invasive surgical procedure treating thoralumbar fracture and analyse its clinic applicable area and value. [1]According to advantage of spine external transpedicular fixation technique and limitation of traditional percutanous external transpedicular fixation,design a new percutanous external transpedicular fixation.

(1)根据脊柱外固定技术的优点，传统脊柱外固定器的不足自行研制一套新型脊柱外固定器(WS-1型)；(2)取7具新鲜小牛腰椎标本，自制实验不稳定性骨折模型，把实验分成正常A组、骨折模型B组、新型脊柱外固定器固定C组、新型脊柱外固定器固定联合PVP技术D组，分别按顺序测试四组的三维稳定性，并测试A组、C组与D组在300N轴向压缩实验，再行统计学分析比较；(3)应用新型脊柱外固定器联合椎间盘镜微创椎管减压技术和PVP技术手术治疗胸腰椎骨折，病例选择：本组病例共69例，年龄自10岁-70岁，平均年龄56.3岁。

The one end of bimetal is fixed, the other end is connected to mechanism to drive pointer.

金属片一端固定而另一端与指示轴固定为一体，从而在金属片伸展变形时驱动指示轴旋转并在刻度盘上指示出相应的温度值。

I design two axis which taper is 1:12 to install bearing and fix bearing of cylindrical roller, I used locking nut to fix the direction of bearing owing to the reason of boring head's high precision.

主轴中设计了两个锥度为1：12的的轴段用于安装支承和固定圆柱滚子轴承，由于镗削头的精度要求很高，在轴承处使用了锁紧螺母进行轴向固定。

The machine component claimed in claim 1, in which the second mounting means comprises a toggle bracket fixed with respect to the base plate, a toggle lever located above the slide plate and pivotally mounted to said toggle bracket about afirst axis, a clevis bracket affixed to the slide plate, a toggle link pivotally mounted at one end to said clevis bracket and pivotally mounted at the other end to said toggle lever at a second axis spaced from said first axis, one part of said assemblybeing pivotally mounted to said toggle lever at a third axis spaced from said first axis, the second and third axes being spaced different distances from said first axis.

机器组件索赔要求1，其中第二次安装的手段包括一个切换支架方面的底板，上面一个切换杠杆的滑板位于pivotally说，安装在固定支架切换对afirst轴，一羊角支架贴幻灯片板，一个切换链接pivotally在一端的安装支架，并说，羊角pivotally在另一端安装说，从第二个间隔轴切换杆称，第一轴，其中的一部分说assemblybeing pivotally安装在切换上说杠杆间隔从第三轴轴表示，第一，第二和第三轴间距是从不同的距离表示，第一轴。

Outer chain plate fixed to the pin on the inner chain plate fixed to the sleeve on the roller with the sleeve and between sleeve and the pin relative rotation between the can and thus the chain and sprocket meshing mainly rolling friction.

外链板固定在销轴上，内链板固定在套筒上，滚子与套筒间和套筒与销轴间均可相对转动，因而链条与链轮的啮合主要为滚动摩擦。

The sliding gear assembly consists of sliding shaft, sliding gear and sliding clutch. The sliding shaft coaxial with the driving shaft has one end stretched into the axial hole on one end one the driving shaft and the other end supported on the front end casing; and the driving shaft is fixed axially onto the pedestal.

滑动齿轮组件由滑动轴、连接在滑动轴上滑动齿轮、连接在在滑动轴上的滑动离合器组成；滑动轴与传动轴同轴；滑动轴的一端的伸入在传动轴的一端沿轴向所开的孔内，另一端支撑在前端壳体上；传动轴在轴向被固定在底座上。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。