拉紧

To research the frame as one system and find the congruous pre-tightening load, the finite element analysis models of combined frame are built up with selected Lagrange multiplier algorithm as contact arithmetic and applying pre-tightened force element.

为将机身作为一个系统来进行分析以确定预紧力，选择拉格朗日乘子法作为接触算法，并结合预紧力单元解决组合式预应力机身的有限元建模问题。

Book equipment application in automobile, motorcycle, machinery foundation profession such as chain, fastener, bearing, box spanner, tool, special different type nut and flange surface nut, sides nut, welding nut, cover type nut , locknut, defence pine nut, pull hat nut, chain Luo pull, expansion gecko, independently axle gear, bicycle different type etc.

本设备应用于汽车、摩托车、机械基础行业（如链条、紧固件、轴承、套筒扳手、工具、特殊异型螺母、法兰面螺母、四方螺母、焊接螺母、盖型螺母、锁紧螺母、防松螺母、拉帽螺母、链条罗拉、膨胀壁虎、自行轴挡、自行车异型件等）等各类异型、复杂非标件的冷挤成型，适用范围广泛。

The company mainly engaged in 4.8, 8.8, 10.9, 12.9, Metric, English, American, German system, the Japanese system, anti-teeth, small teeth, 1.6, with 1.6, nuts, bolts high-strength steel structures, steel structures Shear-twisting screws, nails welded steel structure; 10.9 high-strength steel structure screws; series since drilling screws, chemical screws, chemical fastening agents, advertising screws, Kenuo Di wallboard nails, Chunyu wallboard nails, screw the whole tooth , The top explosions,(stainless steel 2.60, within 1.6, nut, pull explosion, since the attack, machine wire, Ping-, bomb-) copper screws series; screws, a pin T-type screwdriver, screws live Festival , To pin screws, the head screws, cement Dan head screws, belts screws, tight set-key, cylindrical pin, a round nut, Kahuang, Spring, Pin, butterfly screws, orchid flower,扎head and dumping of deduction, 1.30 laps, furniture screws screws, construction fastening accessories (import drilling Tsui, 2.60 keys, twist drill, a round Banya) Gezhongfeibiao special screws.

本公司主要经营4.8级、8.8级、10.9级、12.9级、公制、英制、美制、德制、日制、反牙、细牙、外六角、内六角、螺母、高强度钢结构螺栓、钢结构扭剪形螺丝、钢结构焊钉；10.9级高强度钢结构螺丝；自钻螺丝系列、化学螺丝、化学紧固剂，广告螺丝、科诺迪墙板钉、春雨墙板钉、全牙丝杆、顶爆、（不锈钢六角、内六角、螺母、拉爆、自攻、机丝、平介、弹介）铜螺丝系列；拉钉、钢钉T型螺丝、活节螺丝、地脚螺丝、方头螺丝、水泥旦头螺丝、皮带螺丝、紧定、平键、圆柱销、圆螺母、卡簧、弹簧、销轴、蝶形螺丝、花兰、扎头、卸扣、三角圈、家具螺丝螺丝、建筑扣件配件系列；（进口钻咀、六角匙、麻花钻、圆板牙）等各种非标特殊螺丝。

Take-up: the wire or small cable is pulled through the line by a capstan puller or,for large diameter

紧线器：电线或小电缆是通过绞盘拉出器生产线拉出来的，而直径较大的电缆，链轨绞盘拉出来的。

Later advancements saw the ends of the can made out of aluminum instead of steel. In 1962, Ermal Cleon Fraze of Dayton, Ohio, invented the integral rivet and pull-tab (also known as rimple or ring pull), which had a ring attached at the rivet for pulling, and which would come off completely to be discarded.

之后的技术进步经历了铝替代铁做原材料使之能够冷凝。1962年，来自俄亥俄州代顿的艾马尔·克里昂·弗拉泽﹙Ermal Cleon Fraze﹚发明铆钉和拉标签：铆钉上外套一个环锚紧，拉开后可整个被丢弃。

A tight wire ;a tight drumhead.

拉得很紧的线；绷得很紧的鼓膜

A tight wire;a tight drumhead.

拉得很紧的线；绷得很紧的鼓膜不适合

The Levy style Cable Dome model is made up of 〓5 tension piano-wires and 〓32×1 5 compressive steel pipes, distance between nodes and the tension force of cables is adjusted by screw up and down the turnbuckle The procedure of shaping up included four ways, and the loading included fully loaded and half loaded, to validate the influence of unconservative property, the author carried through the slack procedure and the unload procedure.

该Levy型索穹顶模型，以受拉的〓5高强钢丝和〓32×1.5受压钢管构成，节点间拉索的长度以及拉索的预拉力通过拧紧或放松花篮螺丝来调节。试验内容包括成形试验和承载力试验，成形试验尝试了四种不同的成形方法，为了考察结构非保守性的影响，每种成形方法成形后，还逆序进行了结构的松弛试验，荷载态试验包括均布荷载满载（即在所有压杆上部节点施加集中荷载）和半载（在结构1／2的压杆上部节点施加集中荷载）的加载和卸载时结构工作性能的测试。

The draw ratio is the direct relationship between the draw punch and the blank edge—the greater the distance between the draw punch and the blank edge, the greater the resistance to flow, primarily because of the additional surface area of sheet metal clamped between the die face and the blank holder.

拉伸率直接体现在拉伸冲头和展开平板边缘之间的关系---拉伸冲头和展开平板边缘之间的距离越大，限制流动的阻力越大，主要是因为在压边圈和模具表面间有额外金属板表面被夹紧。试着用不同尺寸和外形的展开平板进行实验。

When cutting tool roaled of spindle's hole by manipulator or other ways,the pull nail behind of knife hilts is sent to ahead of tension bar of spindle. When receives the clamps signal, the pressure oil is passed over the oil cylinder left cavity of the spindle rear part, the piston to the right migration ,tension bar also to right migration by small dish shape spring function, the stell ball of ahead circumference of the tension bar shrink the distribution diameter by spindle's cone hole's force, holds on the knife hilts and pull nail colsely.

当刀具由机械手或用其他方法装到主轴孔后，其刀柄后部的拉钉便被送到主轴内拉杆的前端，当接到夹紧信号时，将压力油通入主轴尾部的油缸左腔，活塞向右移动，拉杆在碟形弹簧的作用下也向右移动，其前端圆周上的钢球在主轴锥孔的逼迫下收缩分布直径，将刀柄拉钉紧紧拉住。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。