定位螺钉

The tripping and calibrating principle of the MCCB was introduced.The hardware and software design of the intelligent testing system was expounded.The screw adjusting mechanism along with the laser positioning technology can precisely locate the screw on the bimetallic strip of the MCCB and complete the screw simultaneous integration when being electrified.

介绍了塑料外壳式断路器的脱扣原理及校验方法，详述了MCCB智能测试系统的软、硬件设计，系统中所研制的一体化螺钉螺母调整机构结合激光定位技术，实现了对MCCB双金属片上螺钉螺母中心的精确定位及在通电过程中对螺钉螺母进行同步一体化调整。

But it can not expose atlanto-axial joint,can not direct see courser direction of screw with naked eyes.

但该术式无法暴露寰枢椎，肉眼不能直接观察到螺钉的走行方向，术前必须对螺钉的走行方向进行准确的定位，但是怎样进行定位目前国内只有陈坚报道过[5]，但缺乏系统的实验研究；国外未见相关报道。

5 Create the inferior screw model Bisectioning the included angle between exterior and interior screw and theincluded angle between ecto-upper and ento-upper screw in AutoCAD2006 software,Create a plane traverse the two bisection points and the core of the pedicle.

采用上述辅助定位后如遇椎弓根部穿破情况则需要手动调整螺钉以使螺钉刚好与原穿破侧椎弓根骨壁相切。 1.2.5创建下侧进钉方向的椎弓根螺钉模型：在AutoCAD2006程序中将椎弓根螺钉内外夹角、上方夹角两等分，由同侧两等分点与椎弓根中心点共同创建一平面，依该平面与同侧球在下终板平面交点创建下方螺钉模型。

We have advanced imported equipment such as the panel saw from Germany, the timber we fell with which doesn't have any burst opening; the automatic extruder from Japan, which automatically seals the lines of planks, thus ensuring their quality; the row drill imported from Germany, which guarantees that wooden bolts and linkers instead of screws are used in installing the sideboard; and the hinge joint from Germany, with which we use for perforation, using the advanced German 32 positioning system.

我们有先进的进口设备，德国的开料锯，开出的木料没有爆口；日本进口的自动封边机，对板材进行自动封边，保证了品质；德国进口的排钻，保证了柜体安装使用木销和连接件，而不使用螺钉；德国的铰链机打孔，采用德国先进的32定位系统。

Spinal orthopedic surgery and osteotomy of the 19 patients were completed on spine models according to preoperative plan, and the pre-bending of the orthopedic fixation rod was accomplished according to the angle of the models after osteotomy or orthopedy .

按术前计划在脊柱模型上完成脊柱矫形或截骨，并按照截骨或矫形后模型角度完成矫形固定棒的预弯。2。在模型指导下根据骨性标志定位，完成椎弓根螺钉钉道的预制，上端达到胸1水平。3。

The guide sleeve is more longer , which reduces wear and improves metering pump service life .The whole component has no screw connection, so cleaning is very convenient. Positioning parts adopt universal connectivity, it can finish self-centering and compensation for position error.

其导向长度长，减少磨损，提高计量泵寿命；整个部件无一螺钉连接，清洗十分方便；定位部位万向连接，可自动定心和补偿位置误差。

To cooperate with new and old parts: although standard zero, components, but in between interchangeable in assembly parts, and to make the optimal coordination between trim, still needs a lot of work, such as the gear and rack, boring if after removal of gear various performance indicators are used by detecting without the need to change, and to replace worn rack, rack and rack positioning pin hole on installation bolt holes and should be first, reoccupy hand crossed positioning drills and tapered reamer to match the drill and match hinge, and after the installation of new and old super-modulus gear mesh clearance to achieve technical standards, this work takes about one day.

。新，旧零部件重新配合过程：尽管标准零，部件间具有互换性，但在装配中，要使新旧零部件间的配合达到最佳状态，仍需大量的修整工作，如镗床的齿轮与齿条，若拆卸后齿轮的各项性能指标经检测尚能使用不需更换，而齿条磨损严重需更换，那么齿条及齿条安装面上的定位销孔和定位螺钉孔就需先划线定位，再用手电钻及锥形铰刀重新配钻和配铰，且新齿条安装完毕后与旧齿轮的啮合间隙需达到技术要求的标准，此项工作需时约一天。

To cooperate with new and old parts: although standard zero, components, but in between interchangeable in assembly parts, and to make the optimal coordination between trim, still needs a lot of work, such as the gear and rack, boring if after removal of gear various performance indicators are used by detecting without the need to change, and to replace worn rack, rack and rack positioning pin hole on installation bolt holes and should be first, reoccupy hand crossed positioning drills and tapered reamer to match the drill and match hinge, and after the installation of new and old super-modulus gear mesh clearance to achieve technical standards, this work takes about one day.

。新，旧零部件重新配合过程：尽管标准零，部件间具有互换性，但在装配中，要使新旧零部件间旳配合达到最佳状态，仍需大量旳修整工作，如镗床旳齿轮与齿条，若拆卸后齿轮旳各项性能指标经检测尚能使用不需更换，而齿条磨损厉害需更换，那么齿条嘉逸条安装面上旳定位销孔和定位螺钉孔就需先划线定位，再用手电钻及锥形铰刀重新配钻和配铰，且新齿条安装完毕后与旧齿轮旳啮合间隙需达到技术要求旳标准，此项工作需时约─天。

The main product categories: PEM standard parts: pressure riveting nut; pressure riveting nut column (SO, SOO, BSO-type); insert nut; pressure rivets; pressure riveting screw ; floating nut; Squeeze Nut; grounding nut column; spring screws; positioning shoring holders; positioning pin and so on.

主要产品种类： PEM标准件：压铆螺母；压铆螺母柱（SO、SOO、BSO类）；镶螺母；压铆钉；压铆螺钉；浮动螺母；挤压螺母；接地螺母柱；弹簧螺丝；定位持撑柱；定位销等。

Main products: Pressure riveting screw, nut riveting pressure, pressure riveting nut -, Inserts into the nut, rose riveting nut, floating nut, ground-nuts, nut-squeezing, Spring screws, self-locking nut, positioning support columns, targeted marketing, sales support cards, in spring, the combination of screws, rivets hollow, as well as various Pressure riveting type of plastic fasteners, etc.!

主要产品有：压铆螺钉，压铆螺母，压铆螺母柱，镶入螺母，涨铆螺母，浮动螺母，接地螺母柱，挤压螺母柱，弹簧螺钉，自锁螺母，定位支撑柱，定位销，支撑卡柱弹簧销，组合螺钉，空心铆钉，以及各种塑料压铆类紧固件等！

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。