钉上

Abstract］ objective to explore the accuracy and safety of safety drillprepared for cervical pedicle screw trajectory.methods fourteen adult cadaver specimens of cervical spine（c3～c7）with intact structures including ligaments and perivertebral muscles were reserved and used.according to the radiographic measurements,safety drill was inserted into cervical pedicle individually.the evaluation of the drill's trajectory was carried out by ct scan and three-dimension reconstruction and autopsy.results one hundred and forty drill's trajectories were made.9 holes failed with a perforation rate of 6.4%.conclusion the safety drill prepared for cervical pedicle screw hole is safe and effective and can be applied and popularized clinically.

目的 探索安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性。方法随机取14具福尔马林浸泡的成人颈椎标本（c3～c7），保留完整的脊柱三柱结构及相关的韧带和椎旁肌，根据影像学测量的进钉点和进钉方向，模拟颈椎后路手术过程。选用安全钻头，进行实际的颈椎弓根螺钉孔道的钻探，将孔道行ct扫描，并斜位三维重建孔道形态，并以肉眼直视观察结果为金标准，评价孔道钻探的成败。结果钻探孔道准确率89.3%（125/140），穿孔率6.4%（9/140）。结论安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性均较高，可以在临床上推广使用。

Of the femoral fracture,there were 14 cases of fractures of shafts of femurs and 1 case of supracondylar fracture of femur;11 male, 4 female;7 left cases,8 right cases;1 case complicated with bending of bone plate and screw,6 cases with breakages of plate;1 case with bending of common intramedullary nail,2 cases with breakages of common intramedullary nails,1 case of screw and wire lock fixation complicated with pseudoarticulation formation,4 cases with nonunion of fracture.

方法］24例长骨骨折内固定手术失败应用有限切开交锁髓内钉治疗的长骨骨折翻修术病例中，股骨15例，其中股骨干骨折14例，股骨髁上骨折1例；男11例，女4例；左侧7例，右侧8例；接骨板螺丝钉折弯1例，断裂6例，普通髓内钉折弯1例，折断2例，螺钉并钢丝固定假关节形成1例，骨折不愈合4例。

Fixed pro - Bolts, rings, pitons, stuck nuts and cams and other piece of unremovable pro that may be found on a climb.

Fixed pro -在攀登路线上留下的膨胀钉、铁环、岩钉或其它不可移动的保护装置。

The scientists found that the ship's builder, Harland and Wolff, in Belfast, struggled for years to obtain adequate supplies of rivets and riveters to build the world's three biggest ships at once: the Titanic and two sisters, Olympic and Britannic.

他们发现，哈兰德以及沃尔夫这两位造船者为了在短期内造好世界上最大的三艘巨轮———泰坦尼克号，以及她的姐妹船，奥林匹克号和大不列颠号———在贝尔法斯特苦苦找寻够格的柳钉及柳钉枪供应商有数年之久。

While the bolt of his iron collar was being riveted behind his head with heavy blows from the hammer, he wept, his tears stifled him, they impeded his speech; he only managed to say from time to time,"I was a tree-pruner at Faverolles."

当别人在他脑后用大锤钉着他枷上的大头钉时，他不禁痛哭起来。眼泪使他气塞，呜咽不能成声。他只能断续地说：&我是法维洛勒修树枝的工人。&

While the bolt of his iron collar was being riveted behind his head with heavy blows from the hammer, he wept, his tears stifled him, they impeded his speech

当别人在他脑后用大锤钉着他枷上的大头钉时，他不禁痛哭起来，眼泪使他气塞，呜咽不能成声。

I ask your excellencies' pardon, but this is quite a French demand; for the next week you will not find a single tailor who would consent to sew six buttons on a waistcoat if you paid him a crown a piece for each button.""

请两位大人原谅，这个要求法国气太重了，因为在这一个星期以内，即使你们要找一个裁缝在一件背心上钉六粒钮扣，每钉一粒纽扣给他一个艾居，他也不会干的。&&

Lv Yinyin the marsh, the beating clumps, a clusters of "little flame", Emperor Qianlong then looking at this strange scene, the letter I Yin Road,"Beyond the Great Wall is like a golden yellow nail places," the eminent writer, immediately Yue Ji Xiaolan "Beijing is like silver in diamond drill Baita day", leaving several thousand good pair.

绿茵茵的草滩上，跳动着一丛丛、一簇簇、&小火苗&，乾隆当年望着这奇特的景象，信口吟道&塞外黄花恰似金钉钉地&，大文豪纪晓岚立即对曰&京中白塔犹如银钻钻天&，留下了千古佳对。

I began to occupy my house on the 4th of July, as soon as it was boarded and roofed, for the boards were carefully feather-edged and lapped, so that it was perfectly impervious to rain, but before boarding I laid the foundation of a chimney at one end, bringing two cartloads of stones up the hill from the pond in my arms.

七月四日，我开始住进了我的屋子，因为那时屋顶刚装上，木板刚钉齐，这些木板都削成薄边，镶合在一起，防雨是毫无问题的，但在钉木板之前，我已经在屋子的一端砌好一个烟囱的基础，所用石块约有两车之多，都是我双臂从湖边抱上山的。

Short flat-headed nail used to attach sheet metal to wood.

把金属片钉到木头上的短的平头钉。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。