头形

According to the point of view of mechatronics, the modeling of the dot-matrix needle printer head has been completed by the method of electromechanics.

本文从机电一体化的观点出发，运用机电动力学方法，完成了计算机的点阵针式打印头的建模，并进行了数值模拟分析，且推导出"L"形打印头的磁路、电路和动力学方程，给出了相应的初始条件和边界条件。

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。

Experimental result shows that when the incident is vertically polarized, the head direction RCS average's variation along the relative curvature is of "W" shape and has 2 minimum values; when horizontally polarized, the head direction RCS average's variation is different in two bend fashions.

实验结果表明，垂直极化下头向雷达散射截面均值随弯度呈"W"形变化，有两个极小值；水平极化下两种弯折方式头向雷达散射截面均值变化趋势差异较大，上下弯折时呈"W"形变化，水平弯折时单调降低。

Pseudostem ca. 1.7 m (measured to crown of leaves at maturity); leaf blade ca. 3.3 m, base slightly cordate to truncate; compound tepal ca. 5 cm; fruit trigonous clavate; seeds slightly wrinkled

Pseudostem大约1.7米；约的叶片3.3米，基部稍心形到截形；约的合生花被片5厘米；果三棱棍棒状；种子稍起皱 2 ENSETE wilsonii 象头蕉

May, upon request, to produce square, round, ring, tile-shaped, curved, Shenyang the first hole and wire-cutting and other special-shaped shape, could be the appearance of plating white zinc, color zinc, blue zinc, nickel, nickel, copper and nickel, gold, etc..

可根据要求生产出方形、圆形、环形、瓦形、弧形、沈头孔及线切割异形等形状，并可将外表电镀成白锌、彩锌、蓝白锌、镍、镍铜镍、金色等。

METHODS: From June 2007 to March 2009, 8 patients with terrible triad of the elbow were treated. The fracture of the radial head was classified according to the system of Mason, with typeⅠ in 1 patients, type Ⅱ in 6 and type Ⅲ in 1; fracture of the coronoid process was classified according to the system of Regan and Morrey, with type Ⅰin 2 patients, type Ⅱ in 5, and type Ⅲ in 1. The hollow lag screws and Herbert screws were used to fixe coronoid process and radial head fractures, and repair Annular ligament. Lateral collateral ligament was repaired in 1 case. All injured extremities were treated with a posterior plaster splint with the elbow joint held in 90° of flexion and the forearm in neutral rotation for 2-3 weeks followed by elbow rehabilitation training.

于2007-06/2009-03共收治肘关节恐怖三联征患者8例，其中尺骨冠突骨折按 Regan-Morrey法分类：Ⅰ型2例，Ⅱ型5例，Ⅲ型1例；桡骨头骨折按Mason法分类：Ⅰ型1例，Ⅱ型6例，Ⅲ型1例。8例患者均采取了内固定治疗，采用中空拉力螺钉或Herbert螺钉固定冠突和桡骨头骨折，修补环状韧带，1例缝合修复肘外侧副韧带，术后屈肘90°旋前中立位，以塑形良好的高分子管型石膏固定两三周后开始屈伸和旋转康复训练。

They usually have daggerlike head spines and a flattened oval body with pointed fringe scales along the sides.

通常有匕首样的头棘，身体扁平呈卵形，两侧有尖形衬边鳞片。

They usually have daggerlike head spines and a flatten ed oval body with pointed fringe scales along the sides.

通常有匕首样的头棘，身体扁平呈卵形，两侧有尖形衬边鳞片。

In possession of 20-year,s special productionand managerial experience,linking with the most advanced manufacturing engineering both at home and aboard,in the tenet of "uality First,Credit Highest"striving for innovation,and taking advantage of equipments and materials with high specification,high quality inJupan and Taiwan,etc.the orporation provide you high strength stainless steelmachine bolt,self tapping screw,trigonodont crew,setscrews of M2-M12 single-line slot,cross slot,inside and outside angle,pan head,conmbined screw,stainless steelspacer and special nut,such as stainlesssquare nut,hexagon nut,weld nut,welding yandage,folan screw nut,with annual output coming out in front of fellow industry.

公司拥有20年的专业生产及管理经验，融汇国内外最先进的制造工艺，力求创新，本着&质量第一，信誉至上&的宗旨，应用日本、台湾等高标准、高质量的设备及材料，为客户提供高强度M2～M12一字槽、十字槽、内外六角、盘头、沉头、尖头、平头等形状的不锈钢机械螺丝、自攻螺丝、三角牙螺丝、紧定螺丝；铝钉；全不锈钢铆钉、尾孔钉、子母钉；不锈钢垫片及不锈钢方母、六角螺母、焊接螺母、焊码、佛兰螺母等异形螺母，年产量名列同行业前茅。

Capsule truncately capitate ovate, 3-4 mm in diam.; disk narrow; valves 3 or 4, equaling hypanthium rim or included.

蒴果截形头状卵形的，直径的3-4毫米；花盘狭窄；裂爿3或4，等长于托杯凸缘或内藏。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。