移位

Results HRCT findings of 45 cases of chronic otitis media with cholesteatoma included abnormal soft-tissue mass shadows in tympanic cavity of middle ear,sclerotic mastoid were observed in most cases, and bone changes including enlargment of the tympanic cavity with sclerotic border, the dislocation and destruction of the ossicles.The sigmoid sinus plate,tympanic tegmen, semicircular canal and facial nerve canal were destroyed in severe cases.

结果 胆脂瘤型慢性中耳炎患者HRCT表现：①45例均见中耳腔内团块状软组织影；②40例为硬化型乳突（88.9%）；③骨质改变包括中耳腔扩大和周缘骨质硬化、听小骨的移位、破坏、乳突骨质的破坏，严重者可伴有乙状窦壁、鼓室盖、面神经管及半规管的破坏。

There were no bone erosion in the 3 ears with simple type otitis media, and the 19 ears with cholesteatoma showed: abnormal soft-tissue and bony erosion in the tympanic cavity and antrum; dislocation and disruption of the ossicular chain; and showed disruption of sigmoid sinus plate, tegmen tympani, semicircular canal and facial nerve canal in severe cases.

胆脂瘤型中耳炎SCT-3DI示：鼓室、鼓窦内软组织影和骨质破坏，听骨链移位和破坏，严重者破坏鼓室盖、面神经管、外半规管和乙状窦板等，与手术中所见基本相符。

objective the purpose of this study was to summarize our experience of the application of internal rigid fixation with miniplate to treatment of mandibular fractures.methods a retrospective analyisis of clinical data of 67 cases,who had experienced the anatomic reduction and rigid fixation by using miniplate.with the help of maxillomandibular distraction pre operation and post operation and temporary maxillomandibular fixation during operation,the fracture bones were smoothly reduced and fixed.results clinical and radiographic examination showed that all cases gained good clinical results and precise anatomic alignment of fracture postoperatively without infection,malocclusion,bone malunion or other complications.conclusion mocortical miniplate fixation of the mandible is a reliable and effective techinique providing rigid fixation and an ideal modality for the treatment of mandibular fractures.combined with maxillomandibular fixation.

对67例下颌骨骨折患者的临床资料进行回顾总结，所有患者应用小型接骨板行坚固内固定治疗。其中7例颏部骨折，12例颏旁骨折，16例颏孔区骨折，9例体部多发性骨折，5例体部粉碎性骨折；18例合并其他部位骨折。所有患者术前经临床检查和影像学检查明确骨折的位置和骨折线的数目后，分段牙弓夹板结扎、颌间弹性牵引，使移位的骨折段逐渐复位；术中经口内切开复位、细钢丝颌间结扎、小型接骨板坚固内固定；术后行临床检查和影像学复查，必要时颌间弹性牵引7～10 d。结果所有患者手术切口ⅰ期愈合，治疗效果满意；临床检查所有患者牙合关系良好、面部对称；影像学复查证实骨折线对位良好。结论经口内切开小型接骨板坚固内固定辅以颌间固定治疗下颌骨骨折效果可靠，术后并发症少，是一种理想的手术方法。

The device comprises: a conveyer belt; a let-off roller (16) on which the conveyer belt runs and from which the rubber tape is let off; a traverser (21) to move the let-off roller (16) in an X-axis direction parallel to the rotational axis of the object; a radial shifter to move the let-off roller in a Y-axis direction perpendicular to the X-axis direction; a tilter (23) to turn the rotational axis of the let-off roller (16) around a reference axis which is parallel to a Z-axis direction perpendicular to the X-axis direction and Y-axis direction.

所述装置包括：输送带；送出辊，所述输送带在送出辊上行进并且所述橡胶带从送出辊送出；移动台，其沿平行于物体的旋转轴线的X轴方向移动送出辊；径向移位装置，其沿垂直于X轴方向的Y轴方向移动送出辊；倾转装置，用于绕平行于Z轴方向的基准轴线转动送出辊的旋转轴线，所述Z轴方向垂直于X轴方向和Y轴方向。

As applications, we prove the following results: If / has pointwise pseudo-orbit tracing property, for any k ∈ Z+, and fk is chain transitive, then for any k ∈ Z+, fk has open set transitive ; If f has pointwise pseudo-orbit tracing property, and for any n ∈ Z+,fn is chain transitive, then f has sensitive dependence on initial conditions; If f is open set mixing and has pointwise pseudo-orbit tracing property, then f has property P; Let f :→ be a homeomophism, then f is pointwise pseudo-orbit tracing property if and only if the shift map σf is pointwise pseudo-orbit tracing property.

作为应用，证明如下结论：若f具有逐点伪轨跟踪性质，且对任意k∈Z+，fk为链转换的，那么对任意k∈Z+，fk为开集转换；若f具有逐点伪轨跟踪性质，且对任意n∈Z+，fn为链转换的，则f具有初始敏感依赖性质；若f为开集混合的，且具有逐点伪轨跟踪性质，那么f具有性质P；设f：→是同胚映射，那么f具有逐点伪轨跟踪性质当且仅当移位映射σf具有逐点伪轨跟踪性质。

Though the arrangement process is very complicated, there are three basic operations: translocation , reversal and transposition.

虽然其生物过程非常复杂，但可归结为三种基本操作：移位、反转和转位。

This paper proposes a class of Quasi-Cyclic Low-Density Parity-Check codes with high code rates, which is an efficient encoding algorithm due to the almost lower triangular form and simple structure of their parity-check matrices.

摘要该文设计了一种特殊的高码率准循环低密度校验码，其校验矩阵以单位矩阵的循环移位阵为基本单元，与随机构造的LDPC码相比可节省大量存储单元。

Objective: To provide more anatomical basis and new operative methods for transferring great trochanter bone-periosteum flap.

目的：进一步为临床应用大转子骨瓣移位术提供解剖学基础及手术方式。

If cable is used and fretting is recognized, especially with intra-articular migration of meta llic material or nonunion of the greater trochanter, consideration should be given to cable removal.

一旦使用捆绑带后明确磨损的发生，尤其是出现关节内金属材料的移位或大转子不愈合，应该考虑取出捆绑带。

According to the characteristics of DSP fixed-point processing, a fixed-point algorithm which can cancel truncation error is proposed and realized.

根据定点补码运算的特点提出并实现了消除移位截断误差的高效算法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。