查询词典 screw

To evaluate the biomechanical stability of lumbar intact specimen, anterior lumbar interbody fixation specimen, ALIF specimen fixed with pedicle screw and ALIF specimen fixed with translaminar facets screw.

目的］ 对腰椎完整标本、单纯腰椎前路椎间融合术、ALIF分别行椎弓根钉固定及经椎板关节突螺钉固定4种状态进行测试，比较生物力学稳定性。

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。

Through the different assembly of the angle screws and the connective bar, to increase or decrease the fixation angle of the angle screw which as an upholding arm and the connective bar to meet the needs of different lumbosacral angles and hauling screw reducing distance.

通过角度开口螺钉与角度连接棒的不同组合应用，增大或减小作为支撑臂的角度开口螺钉与连接棒之间的固定角度，以满足不同腰骶角及复位距离的需要。

Methods HOIST device is composed of the hauling screw, open angle screw, blocker, angle connective bar and blocking ring.

方法HOIST器械由提拉螺钉、角度开口螺钉、阻塞器、角度连接棒及阻挡环等组成。

Sport watch, Swiss-Made automatic movement displaying 6-hour, 30-minute and 60-second subdial, Main dial polished silver-tone hour/minute hands with luminous accents and polished chronograph-seconds sweep hand, Subdials displayed by silver-tone hands, Main dial applied and polished silver-tone luminescent baton markers, White Arabic numbers/indices mark subdials, Red/white numbers and white indices mark outer minute track, Analog date display at 3, Polished silver-tone stainless steel round bezel and case with raised design at case sides, Polished screw-in crown and steel pushers, Stainless steel screw-in 'skeleton' caseback, Sapphire crystal, 200 meters/660 feet water resistant.

运动手表，瑞士制造的自动运动显示6小时，30分钟和60秒的表盘，抛光银主拨号音小时/分钟双手发光口音和抛光计时，秒扫手，Subdials显示的银色色调手，主要应用于拨号和抛光银双色荧光指挥棒标记，白色阿拉伯数字/指数马克subdials，红/白，白指数的数字标记外分钟跟踪，模拟3日期显示，抛光银双色不锈钢圆形边框并设立案件提出了设计方面的情况，抛光螺钉在'在冠和钢铁顶推船，不锈钢螺钉骨架'表壳，蓝宝石水晶，200 meters/660英尺防水。

In order to design optimally a model of screw conveyer which can simulate the separation of silt in Yellow River,the geometry of screw and the forces applied onto the silt particles were investigated in detail,and a horizontal screw centrifuger suitable for silt separation on Yellow River was designed by means of simulation.

为了优化设计一种可以模拟黄河泥沙分离的螺旋输送器模型，较细致地研究了螺旋的几何形状、作用在颗粒上的力以及模拟设计适应黄河泥沙分离用的卧螺离心机，优化分析了各个作用力对分离颗粒的受力情况，然后通过数值模拟螺旋输送器对液流中颗粒的作用状况，简单地分析了液流在螺旋输送器作用下的主要特征及其建模理论。

The company range of products and services include: self-and agent all kinds of domestic and foreign oil import and export of machinery and equipment Products Services, including: drilling machinery (drill, drill pipe, square pipe, drill collar, screw drill), oil production machinery (pumping, ground-driven screw pump, electric submersible screw pump, pump, sucker rods, valves, various types of downhole tools), pipe (tubing, casing, pipe, glass pipe, composite pipe ), oil field chemicals (such as drilling fluids, completion fluids, workover fluids, anti-foam agent, emulsifier, oil microorganisms, scale, etc.) and oil technology development, transfer and services.

公司主要产品和服务范围包括：自营和代理国内外各类石油机械设备产品的进出口服务，主要包括：钻井机械（钻机、钻杆、方钻杆、钻铤、螺杆钻具）、采油机械（抽油机、地面驱动螺杆泵、电潜螺杆泵、抽油泵、抽油杆、阀门、各类井下工具）、管材（油管、套管、输送管、玻璃钢管、复合管）、油田化学品（如钻井液、完井液、修井液、防泡剂、乳化剂、采油微生物、阻垢剂等）以及石油技术的开发、转让和服务等。

The mixing power and circulation characteristics of Newtonian fluid and pseudoplastic fluid were measured in a φ300mm organic glass vessel,by using anchor and tri-leaf impeller,anchor and inner-outer screw,orthogonal twi-stratm triangle blades and single screw,orthogonal twi-stratum triangle blades and inner-outer screw types of combined agitators.

为使聚合釜内搅拌介质在湍流、过渡流及层流域都能达到良好的混合，对锚－三叶推进器、锚－内外单螺带、正交双层三角桨－单螺带、正交双层三角桨－内外单螺带等4种组合桨搅拌器，于φ300mm的有机玻璃釜中，测定了在牛顿流体和假塑性流体中的搅拌功率和循环特性。

That is, plastic screw-plate-type copper composite material Slideway TS-70 series, screw-plate-type heavy-duty low-Mount Self-lubricating bearings lubrication and drop TS-100 series, screw-plate-type solid-liquid film lubrication Bearing GM series, in addition to have mosaic-type self-lubricating composite bearings XQZ and with independent intellectual property rights GY series, as well as a common three-tier composite material SF series, copper steel matrix composites TSG Series.

即钉板型铜塑复合材料滑道TS-70系列，钉板型重载低摩自润滑和滴油润滑轴承TS-100系列，钉板型固液油膜润滑轴瓦GM系列，此外还有镶嵌型自润滑复合轴承XQZ和具有自主知识产权的GY系列，以及通用的三层复合材料SF系列，铜塑钢基复合材料TSG系列。

Objective To set up the finite element model of type Ⅱ axis odontoid fracture treated with anterior odontoid screw fixation and analyse the influence of different fixation position of screw 、different angle of fracture surface to the stability of odontoid process fracture fixed with anterior odontoid screw.

目的建立Ⅱ型齿状突骨折螺钉固定的三维有限元模型，分析不同螺钉内固定位置以及骨折面角度对术后Ⅱ型齿状突骨折端稳定性的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。