前弯

Each of eight adult fresh cadaver specimen of lumbarsacral segmcnts was analyzed in four states: intact, L5S1 ALIF, L5S1 ALIF fixed with pedicle screw or fixed with translaminar facets screw, test and compare its range of motion in flexion, extension, lateral bending and axial rotation.

方法］ 采用新鲜腰椎标本8具，分别于完整状态、L5S1，前路植以Cage、L5S1，前路Cage分别行椎弓根钉固定及经椎板关节突螺钉固定下，测定前屈、后伸、侧弯及扭转运动下运动范围并进行比较。

A few weeks ago, I took my family for a ride on the Alpine Loop.

几个星期前，我带着一家驱驰在Alpine山脉的弯路上。

A three-dimension FEM model of normal L4-5 was built, and the lumbar facet joints were treated as to contact with each other. Various motions of L4-5 were simulated by changing the loads: anteflexion, retroversion, right rotation, right bending and longitudinal compression.

本文建立了L4-5正常运动节段的有限元模型，将两小关节面处理为接触模型，分析了小关节面在腰椎前屈、后伸、侧弯、旋转及压缩运动状态下的受力情况，发现小关节在承载方面作用较大，特别是抗旋转运动过程中作用更明显。

Objective To examine the feasibility of using selfsuspension traction as an auxiliary treatment for the scoliosis operation.

目的 探讨自身悬吊牵引对脊柱侧弯患者术前辅助治疗的可行性。

Summary of Background Data. Hemothorax is a known rare postoperative complication of anterior spinal scoliosis surgery. However, spontaneous HT has never been described as a late complication,in relationship to diaphragm movement over the anterior instrumentation material.

背景数据概要：据我们所知，血胸是前路脊椎侧弯手术的一种很罕见的并发症，然而，自发性HT作为一种迟发性术后并发症还从没有被报道过，这也许与前路内固定物在膈肌表面往返运动有关。

In brief, the concept is, you must establish substantial overlap with the car ahead before a corner's turn-in point to have the right for room to be left for you by the ahead driver.

简而言之，概念即是，你必须在进"入弯点"之前与前车建立"充分的重叠"，使你有权获得前车留给你的行驶空间。

Posterior to the anterosuperior iliac spine, extend it along the

沿前侧髂嵴延伸到髂前上棘，然后弯向远方

objective the purpose of this study was to explore the method and effectiveness of apertognathia of anterior teeth in teenagers.methods the majority patients were corrected with edgewise appliance after draw four molars, all sorts of flexure were curved on the appliance, used perpendicular traction for anterior teeth and ii, iii maxillomandibular traction, fine adjust intercuspal position ,tip and cavity.

目的 探讨青少年前牙开牙合的矫治方法和效果。方法多数患者采取拔除4个磨牙之后使用方丝弓矫治器矫治，矫治中在弓丝上弯制各种曲，并使用前牙垂直牵引和颌间ⅱ类、ⅲ类牵引，精调牙位及尖窝关系。

METHODS: Sixty-nine extracted mandibular first premolars and 93 mandibular second premolars were used.Radiographs of teeth in mesiodistal direction were taken.

离体第一前磨牙69个，第二前磨牙93个，摄近中远中向的X线片，用Photoshop5.0软件分析根管，用Weine氏法测量根管的弯曲度，测量角度大于18度时，则认为根管存在明显的弯曲，根管的构型采用Vertucci分类法。

It was a slow-speed crash but Jorge was flicked a long way up in the air, at one point he was doing a handstand six feet above the tarmac. It let go as he picked the bike up from the long, long righthanded first corner and pitched it into the only slightly shorter left that is the second turn, the rear tyre skidding out to the right as it was asked to provide some grip on the left side. It was in fact a classic cold tyre crash.

那是个低速的事故但 Lorenzo 却被车子弹得老高，在那一刻，他被抛得倒立状并离路面有6英尺高（整体侧身前空翻落地重摔而导致双脚落地骨折－详见下图）；在直道尾那个长长的右弯过后紧接着是个狭小的左弯（见下图的上海赛道图上部分T3的地方），后胎经过长时间的右摩擦后正准备转向左边的时候就出事了，这实际上是个经典的&冻胎翻&（意指轮胎在预热不足的情况下失去抓地力而导致事故

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐