查询词典 screw

Methods Design a vertical pole in universal globle-head, an independent screw nip steatite was composed of upper, lower nip steatite and three snails, which was connected with vertical pole to choose screw insertion area at will. Results 80 patients were treated with this external fixator.

在原固定架的万向球头设计纵杆，钢针夹块为独立结构，由上、下夹块和3枚螺钉组成，下夹块夹持钢针，其与纵杆连接，可多角度旋转，任意选择穿针平面。

At the same time we also provide accessories for stone machine, it includes tie-rod, lead screw, lead screw nut, cone gear, plastic roller for stone carrier.

本公司自创立以来采用先进的技术及工艺装备，不断进行产品研发创新，以优良的品质、合理的价格、忠诚的服务态度向用户提供可靠的优质产品。

It is made up of primary screw, secondary screw, butane pump, extruding mould head, molding device, traction machine and take-in machine.

它是由无数小螺丝钉，二级螺纹，丁烷泵，挤出模头，成型装置，牵引机，并采取合机。

A container (1) containing a coating composition the container comprising a container body (21) and a lid (7), the lid comprising a collar (11) and a disc (12), the container body having an opening provided with a screw-thread (5) cooperable with a screw-thread (6) on the collar and closeable by said lid characterised in that the disc is formed of polyethylene terephthalate which is sufficiently transparent to allow the coating composition to be visible therethrough.

一种容纳涂敷组合物的容器(1)，该容器包括容器主体(21)和盖子(7)，该盖子包括套环(11)和盘(12)，该容器主体具有一设置有螺纹(5)的开口(2)，该螺纹可与该套环上的螺纹(6)配合使用，并且该容器主体可由该盖子封闭，其特征在于，该盘由聚对苯二甲酸乙二醇酯形成，其足够透明以便使得透过该盖子可看到该涂敷组合物。

SJSZ Series Conical Double-Screw Plastic Extruder, with relevant screw and auxiliary machine, can directly extrude all kinds of thermoplasticity plastic especially the hard PVC powder into pipes, plate, sheet, film, profiles and so on, can also finish process of reshaping of all kinds of plastics and pelleting of the powder.

今天来说说锥形双螺杆挤出机。SJSZ 系列锥形双螺杆挤出机，配以相应的螺杆和辅机。可将各种热塑性塑料特别是硬聚氯乙烯粉料直接挤出成管。

By analysing and calculating the variations in distribution of axis direction contact force and contact pressure on screw thread, the influence of errors of pitch and taper of casing screw threads to the properties of resisting pull and sealing liquid and gas are studied. Based on the result obtained through analysis, a reasonable tolerance distribution for pitch and taper is proposed.

最后，本文通过分析计算内外螺纹不同的螺距、锥度参数配合时，轴向载荷及接触压力在螺纹上分布的变化，研究了套管螺纹的螺距、锥度参数误差对套管螺纹接头的拉伸和密封性能的影响，并依据分析结果提出了二参数公差带的合理分布。

Company has strong technical strength, excellent equipment, advanced technology, professional manufacture of stainless steel, carbon steel, copper and other self-tapping screws, self-tapping locking screws, machine screws, bolts, self drilling screw, hollow rivets, combination screw, flat mattress, shell mat, tooth pad, nuts, non-standard parts, refrigerator drawer pulley, refrigerator test kits and other products.

公司技术力量雄厚，设备精良，工艺先进，专业制造不锈钢、碳钢、铜等各种自攻螺钉、自攻锁紧螺钉、机螺钉、螺栓、自钻螺钉、空心铆钉、组合螺钉、平垫、弹垫、齿垫、螺母、非标准件、冰箱抽屉滑轮、冰箱试验包等产品。

Depending on the axis being spacelike, timelike or null, there are three types of screw motions, the third case, i.e., cubic screw motion, is most particular because it is not a rotation together with a translation along the null axis, but a rotation together with a translation along a null curve with non-zero curvature.

依据旋转轴的向量类型，三维Minkowski空间中的螺旋运动可分为三类，其中第三类螺旋运动，即三次螺旋运动，是最特殊的。

It can processing different kinds of decorative patters on the surface of hollow tubular(including circular tube and hexagon socke pipe) such as screw thread, screw thread crosswire, starry sky,ect. There are more than 30 kinds of patters.

特点：针对空心管表面花纹连续制作的最佳设备，能在管状物表面加工螺纹、螺纹交叉线、弄分点状花，满天星花等不同花纹款式，款式多达三十多种以上。

The screw of twin-screw plastic extruder is complex,its structure and parameters determine extrusion process.

双螺杆塑料挤出机中的螺杆较为复杂，螺杆的结构和参数对挤出过程起决定作用。

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％。