相关器

Methods: 12 young patients were treated with head gear extraoral force moving upper first molars distally and then with edgewise appliance.

对12例安氏II类I分类错的少年进行口外弓推磨牙向后治疗，第二期用方丝弓矫治器治疗；对两期相关的软硬组织进行X线头影测量。

Ballasts and Capacitors 21 镇流器和电容器 21.1 A ballast and starter or ignitor, when provided, shall be rated for the operation of the type and size of lamps involved and shall be electrically connected in accordance with the diagram or instructions on or with the ballast.

21.1镇流器和启动器或启辉器，应该相关类型和大小的灯泡相配，并且连线方式和镇流器上面的表或着说明书一致。

Under the way of resource management,the relation between product family and resource is established by reference and classification code. And product instances,which are formed by product configuration,get their attributes and links with inheritage mechanism.

研究了在这种资源管理方式下，产品族通过引用关系和分类代码与资源建立关系；产品实例在产品族基础上通过配置器产生并通过继承机制获得相关属性和连接。

Under the way of resource management,the relation between product family and resource is established by reference and classification code. And product instances,which are formed by product configuration,get their attributes and links with inheritage mechanism. The customization workflow is discussed based on above product information management.

研究了在这种资源管理方式下，产品族通过引用关系和分类代码与资源建立关系；产品实例在产品族基础上通过配置器产生并通过继承机制获得相关属性和连接。

Methods By the datas from measuring 20 cases of dried adult lumbar spine specimens, to design a integer-type of aliform-shape memory alloy intrasegmental fixation instrument, according to the favourable shape-memory ability and the distinct biomechanics-characteristics of nickel-titanium shape memory alloy, then to research its material mechanical property and finite element method analysis.

依据干燥完整的成人腰椎标本相关解剖数据的测量结果，利用镍钛记忆合金良好的形状记忆功能和独特的生物力学特征设计一种整体型翼状腰椎峡部裂记忆合金节段内固定器，并进行材料力学测试和有限元分析。

However, the authors contend that a thoracolumbar burst fracture, in exclusion of an associated posterior ligamentous complex injury, is inherently a very stable injury and may not require a brace.

但是，笔者认为不伴有相关后韧带复合性损伤的胸腰粉碎性骨折原本是一种稳定的损伤，无需矫形器治疗。

It is found that certain transmission zeros can be created by nonadjacent frequency-dependent coupling.

研究发现此结构的非相邻谐振器之间亦具有频率相关的耦合特性。

At low temperatures, the nonfreezing fluid protects the solar collectors and related piping from bursting.

在低温时，不冻结气体保护太阳能收集器和相关管道以免爆裂。

SUMMARY Objective: To introduce an internal fixation of the latest design for peritrochanteric fracture , a new device for clinical application, called Biaxis Sliding Instrument ; Summary the clinical results of femoral neck fracture treated with dynamic compression screw . Analyse factors related to the clinical results and the failure of treatment. Methods: Apply BSI to biomechanical tests and clinical test.

目的：介绍一种设计新颖治疗股骨转子部骨折的双轴滑动内固定器(Bi-axis Sliding Instrument，BSI)，为临床治疗股骨转子部骨折提供一个新的内固定法；评价动力加压螺钉(Dynamic Compression Screw，DCS)股骨颈骨折的治疗效果，分析与股骨颈骨折疗效相关的因素及总结股骨颈骨折治疗失败的因素，为提高临床疗效及降低内固定失败提供依据和措施。

In this paper ,move ment pri nci ple of rocket i n direction pi pe was got by dy— namic si mulation ,and effect characteristic consideri ng contact stiffness ,detent force and nozzle thrust misalignment a— bout pitchi ng angle velocity was analysis .All the study set foundationfor further study of high—lowpressure launch sys— te m.

通 过发射仿真分析，获得了火箭弹在高低压发射系统中的内弹道变化规律，分析了火箭弹与定向器的接触刚度、耳轴扭转刚度、尾喷管推力偏心等因素对俯仰角速度的影响特性，所得结论为火箭武器高低压发射系统的进一步相关研究奠定了基础。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。