钉

The barbs can be spaced circumferentially along a length of the pin or can be intermittently distributed along the pin.

上述倒刺可沿钉体长度方向在圆周上设置，或者也可沿钉体间歇地分布。

The real-world joints in the aircraft structure usually consist of multi-row fasteners. This thesis builds the 3D FE contact analysis model of a typical aircraft joint with three-row countersunk screws, and studies pin-load distribution and stress characteristics under constant and varied cross-section thicknesses as well as with and without pre-tighten screw conditions for the joint. Many applied pin-load numerical distribution laws for different conditions in the joint are recognized.

本文对典型的多排沉头螺钉接头建立了三维有限元接触分析模型，对螺钉的钉载分布在截面等厚度和变厚度、无预紧力和加预紧力多种情况下进行了数值计算分析，给出了诸多实用化钉载分布规律。

It is difficult to restore the large defect of pulpless tooth body. The dentinal peg and root canal peg filling were used before, which needed specialized instrumnets and materials.

无髓牙牙体大面积缺损的修复是比较困难的，主要有牙本质钉、根管钉桩核等修复方法，均需要专门的工具器械和材料。

When locking screws require to be removed forany reason, e.g. nail dynamization or extraction, or in the occasional case where the

当锁钉因为各种原因需要取出时包括动态交锁，髓内钉取出，以及少数情

If the patient has an intramedullary rod with proximal and distal screws, one set of screws can be removed to allow compression across the fracture with weightbearing. This is called ''dynamization'' and can often be done as an outpatient procedure with the use of local anesthesia.

假如患者使用远近端锁定的髓内钉，可以去除一端的锁钉，通过负重使骨折端加压，这称之为动力化，可以使用局麻作为门诊手术。

The first person who appeared upon the steep stone steps was a boy in corduroy trousers and a dark linen smock-frock, who shambled down the stairs with a good deal of unnecessary clatter of his hobnailed shoes, and who was red in the face from the exertion of blowing the bellows of the old organ.

首先出现在很陡的石级上的，是一个男孩，他穿着灯芯绒裤子和黑色亚麻布长罩衫，拖拖沓沓地走下石级时，钉着平头钉的靴子弄出了很多不必要的喀啦喀啦的声音，他刚才使劲儿吹管风琴的风箱，脸还涨得通红哩。

Those mornings in the cattlemarket, the beasts lowing in their pens, branded sheep, flop and fall of dung, the breeders in hobnailed boots trudging through the litter, slapping a palm on a ripemeated hindquarter, there's a prime one, unpeeled switches in their hands.

牲畜市场上，那些牲口每天早晨都在圈里叫着。被打上烙印的绵羊，吧嗒吧嗒地拉着屎。饲养员们脚登钉有平头钉的靴子，在褥草上踱来踱去，对准上了膘的后腿就是一巴掌，打得真响亮。

expandable intramedullary nail system has the unique technique principle, which has "hourglass" effect of homogenic load distribution and the advantage of no need of reaming and interlocking as well as the high power of anti-rotation resulting from the head of the peg in the femoral head. The fixation of Fixion PF for peritrochanteric fractures in old patients is mini-invasive .

Fixion PF可膨胀髓内钉固定原理为沙漏样固定，应力均匀分布于股骨髓腔，股骨头栓钉于股骨头内膨胀，增加抗旋转能力，不需扩髓、远端交锁，其独特的设计原理可减少创伤和相关手术并发症，尤其适合于老年骨质疏松性股骨近端骨折的治疗。

METHODS: The distances from anterior acetabular margin, posterior acetabular margin to anterior inferior iliac spine, iliopubic eminence and pubic tubercle were measured, respectively to determine and make serial cross-sections of the acetabular anterior column. In addition, the safe angle of screw entry on all entry points of each cross-section was measured, and all data were put into software SPSS 10.0 for statistics process.

分别测量20个半骨盆标本髋臼前、后缘到髂前下棘、髂耻隆起和耻骨结节的距离，确定和制作髋臼前柱系列断面，并测量各断面上各进钉点的安全进钉角度，将测量数据输入到SPSS10.0软件进行统计学分析。

OBJECTIVE: To observe the role of spinal CT measurement in the transpedicular screw fixation in the sacroiliac joint so as to provide related morphological data for the application of iliosacral screw fixation in sacroiliac joint disruption.

目的：探讨三维CT测量在骶髂关节个体化置钉中的应用，为临床个体化置钉提供影像解剖学的依据。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。