螺旋形的

For satisfying to process to keep a mother line, arc mother line, whole convex degree, half convex degree, ligarithmic curve cone, cylinder roll son of demand, ability according to design whet to submit have already corresponded form noodles of spiral lead a round, spiral lead Gun, double the song lead Gun, three convex Fengs to lead Gun, and arc plank and other similar of work piece etc..

为满足加工直母线、圆弧母线、全凸度、半凸度、对数曲线圆锥、圆柱滚子的需要，能根据设计磨出具有相应形面的螺旋导轮、螺旋导辊、双曲导辊、三凸峰导辊、以及圆弧支板以及其他类似的工件等。

Generally, B in the configuration closest cell's DNA conformation, it and the double helix model are similar. A-DNA and when RNA member double helix area as well as duplication forms the DNA-RNA hybrid molecule conformation is close. Z-DNA take the nucleotide dimer as the unit left-hand winding, its principal chain assumes the denticle the shape, therefore.

一般认为，B构型最接近细胞中的DNA构象，它与双螺旋模型非常相似。A－DNA与RNA分子中的双螺旋区以及转录时形成的DNA－RNA杂交分子构象接近。Z－DNA以核苷酸二聚体为单元左向缠绕，其主链呈锯齿形，故名。

Cross-shaped spiral blade to blade gill net is a gill net made of spiral-shaped cross-protection net, mainly for fencing, doors and windows for protection and military defense.

螺旋交叉形刀片刺网是一种把刀片刺网做成螺旋交叉型的防护网，主要用于围栏、门窗的防护和军事防御等。

Pistillate flower: tepals 2-5(-10); pistil composed of 2-5(-7) carpels; ovary inferior, 1-3(-7)-loculed; placentae axile or parietal; styles 2 or 3, free or fused at base, forked once or more; stigma turgid, spirally twisted-tortuous or U-shaped, capitate or reniform, setose-papillose.

雌花 花被片2-5(-10)；由2-5(-7)心皮组成的雌蕊；子房下位，1-3室(-7)；中轴胎座或周壁；花柱2或3，离生或者在基部合生，分叉一次或更多次；柱头膨大，螺旋缠绕扭曲或U形，头状或肾形，具刚毛小乳突。

Through test, it is considered that it is economic and feasible to adopt vertical auger trenching for some small size channels. After improved and perfected, the newly developed auger cable trencher can adapt to the work conditions of trenching and presents some promotion and application prospect.

通过试验，认为对于小型沟形采用立式螺旋挖沟方式是经济可行的，研制的螺旋电缆挖沟机在改进完善之后，能够适应挖沟的工作条件，具有一定的推广应用前景。

Relying on the several years experience and technology power of CNC four axis, the factory has become the specialized one manufacturing rotary products like cylinder cam, type cam, abnormal cam, rolling cutter, circle cutter, propeller, impeller, screw groove, adjustable screw groove, closed curve groove etc.

凭借多年CNC四轴加工精湛的生产技术力量，专业生产加工回转类产品，如圆柱凸轮、平面凸轮、异形凸轮、滚切刀、圆切刀、螺旋桨、叶轮、螺旋沟槽、变距螺旋沟槽、封闭曲线沟槽等，并可加工箱体类精密的空间定位孔、面等。

By analyzing the structure singularity and configuration singularity with the screw theory and the line geometry method, the fundamental conditions of generating the motion singularity are obtained.

本文采用螺旋理论和线几何方法对结构奇异以及配置奇异进行分析，从而得到运动奇异位形产生所满足的条件，并给出3-PRPS并联机器人奇异位形图解说明了该方法的可行性。

The initial values of adjustment parameters are obtained by using iteration algorithm , the cutter profile is simulated with computer, and the profile error is corrected by iterative process, then the optimum values of adjustment parameters can be achieved.

研究了加工螺旋槽用盘形成形铣刀调整参数的计算机算法，利用迭代算法得出调整参数的初值，利用计算机模拟刀具廓形，对廓形误差进行迭代修正，从而可获得调整参数的最优值。

The company Main products: tungsten powder, tungsten carbide powder, cobalt powder; Carbide Rods, rotary burrs, rough milling cutter blade, pipes, plates and other special-shaped products; high-density alloy products; Carbide Milling Welding, T-shaped slot milling cutter, reamer, broach, drill, composite cutting tools, etc.; overall carbide saw blade milling cutter, end mill, slot milling, ball milling, cutting tobacco cutter, reamer, drill, scheduled to handle drilling, etc.; folder, mold, measuring, etc.; Company carbide spiral blades and ultra-fine carbide crystals of high-speed milling product line to fill the gaps in the province, the product is widely used in textile, steel, chemical, mining, machining and electronics industries, and become a Canton Panasonic, Wanbao, FAW, Sanyo, HA 1 workers, the volume of HA, Shanggong and domestic well-known military enterprises and many other brand-name manufacturers to suppliers, the company also self-employed or commission Products agents sold Europe and the United States, Japan, Southeast Asia, Taiwan, Hong Kong and other countries and regions, are users.

公司主要产品：钨粉、碳化钨粉、钴粉；硬质合金圆棒、旋转锉、锯片铣刀毛坯、管、板材及其它异形制品；高密度合金制品；硬质合金焊接铣刀、T形槽铣刀、铰刀、拉刀、麻花钻、复合刀具等；整体硬质合金锯片铣刀、立铣刀、槽铣刀、球铣刀、切烟刀、铰刀、麻花钻、定柄钻等；夹、模、量具等；公司硬质合金螺旋刀片及超细晶体硬质合金高速铣刀产品系列填补了省内空白，产品被广泛应用于轻纺、钢铁、化工、矿山开采、机械加工、电子等行业，并成为广州松下、万宝、一汽、三洋、哈一工、哈量、上工及国内知名军工企业等众多名牌厂家的供应商，公司产品还自营或委托代理商远销欧美、日本、东南亚、台湾、香港等国家和地区，均得到用户的好评。

The average field idea and the single particle model have been introduced, and the motion behaviours in large scale of beam particles have been disscussed for 2 Dimension crystallization beams in storage rings.

利用平均场概念和单粒子模型讨论了储存环中二维晶化束的大尺度运动行为，结果再现了粒子轨道的螺旋运动特征，并用天体物理学方法揭示了螺旋轨道不断进动的新运动形

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