杆

Each time after putting to (the instrument with the set of Yamshidi-Nadel provided by Kypho of America for injection of bone cement into the vertebrae; each putting could contain about 1.5 mL bone cement) inject bone cement into the vertebrae, the pressure P was not very high, with 500 kPa bar below for majority and the effect caused showed a significant statistical difference (P.01). Whereas, the pressure within the area of the vertebral P value was not high either, the majority was 10.00 Unit lower, which also led to the effects of significant difference (P.01). Both two states showed partial distribution. After making the statistical analysis to the casual two puttings between the first, second, third and fourth putting of each vertebrae, there existed the general differences. The differences were also found between other puttings (a.0083) on the statistics basis apart from between the first and second and between the third and fourth.

结果 每个椎体的椎体成形术均达到临床评价要求，每次推杆（美国Kypho公司提供标准椎体成形术中Yamshi-Nadel套系中推注骨水泥入椎体的器具，每具推杆可容纳骨水泥约1.5mL）推注骨水泥入椎体时所产生的椎体内的压力P不是很高，多数在0.50 bar以下，其所导致的效应具有显著的统计学差异(P.01)，而每次推杆推注骨水泥入椎体时的椎体内压力面积值P也不是很高，多数在10.00 Unit以下，其所导致的效应具有显著的统计学差异(P.01)，两者均呈偏态分布；而且，对每例椎体的第一、二、三、四杆之间两两予以统计学上的分析，在总体存在差异有统计学意义的基础上还发现除第一和二杆、第三和四杆之间外，其他各杆之间存在着差异(a.0083)。

At the points where planet gear starts engaging with worm gear or separating from worm gear, oil film thickness are bigger. And the oil film thickness is the minimum at throat part of worm gear.

蜗杆中最小油膜厚度分布情况与定子中类似，在行星轮开始与蜗杆接触及即将与蜗杆分离时较大，在蜗杆喉部最小油膜厚度最小。

The working properties of hollow rod pumping system developed on the basis of hydraulic feedback principle were analyzed.

针对液力反馈原理的新型空心杆采油工艺的特点，在理论分析的基础上，考虑液体运动、空心杆柱受力等因素的影响，完成了液力反馈型空心杆采油管柱力学分析，建立了空心杆采油的二维数学模型。

Therefore, many researches have been taken on the theory and manufacture of worm transmission, including the research on new tooth profile, new drive type, tooth cutting and measuring, lubrication, material and heat treatment, design, calculation, simulation analysis and optimization.

蜗杆传动在理论和加工方面都有较广泛深入的研究，如：新的啮合齿形和新的传动类型的研究；以蜗杆副的加工制造和测量为主要内容的生产实践研究；对蜗轮蜗杆油品和蜗杆副材料的研究；以计算机应用为特点的设计计算、仿真分析、优化等研究。

Main PPR, ABS, PEX Pipe Production Line, PVC, HDPE gas pipe production line, large-caliber hollow-wall winding pipe production line, silicon core pipe production line, steel-plastic composite, medical tube, nylon tube production line, PVC foam core pipe, with spiral pipe production line, posts and telecommunications perforated pipe production line, double-wall corrugated pipe, spiral pipe production line, peroxides, cross-linked polyethylene, pipe production lines, two-pipe extrusion production line, plastic board material production line, plastic foam picture frame-type material production line, SJYF plastic profile extrusion production lines, blow molding Blow Molding Machines, Single Screw eager, cold-cut granulator unit, with the parallel twin-screw extruder, SJSZ conical twin-screw plastic extruder, SJ single screw extruder, SRL-Z series mixing unit, SHR series high speed mixer, auxiliary products sold nationwide and exported to Southeast Asia more than 10 countries and regions.

主要有PPR、ABS、PEX管材生产线、PVC、HDPE燃气管生产线、大口径中空壁缠绕管生产线、硅芯管生产线、、钢塑复合、医用管、尼龙管生产线、PVC芯层发泡管、内螺旋管生产线、邮电通讯多孔管生产线、双壁波纹管、螺旋管生产线、过氧化物、交联聚乙烯、管材生产线、双管挤出生产线、塑料板材生产线、塑料发泡镜框型材生产线、SJYF塑料挤出异型材生产线、吹塑中空成型机、单螺杆热切、冷切造粒机组、同向平行双螺杆挤出机、SJSZ锥形双螺杆塑料挤出机、SJ单螺杆挤出机、SRL-Z系列混合机组、SHR系列高速混合机、辅机系列产品畅销全国并出口东南亚等十多个国家和地区。

This method use positive feedback control to let torsion bar self-excitation, then by measuring torsion pendulum system's nature frequency to calculate torsion bar's stiffness.

针对扭杆刚度的测量，提出了一种全新的动态测量方法─—自激动力微摆法：该方法采用正反馈使扭杆自激，通过测量扭杆扭摆系统的固有频率来计算扭杆的刚度。

Major producers of military and civilian outdoor tent pole bracket,...

主要生产野外军用和民用帐蓬支架杆，休闲旅游用的蹬山杆、滑雪杆、比赛用的箭杆等产品。

The conductive pole only acts for contact and conducting during welding, the pressure pole in its center forces pressure under action of compression spring, and the pressure pole is characterized by high fusing point and mechanical intensity because of the tungsten alloy material, and the life length of contact finger is prolonged.

在焊接作业时，导电杆仅起到接触导电作用，而其中心的压力杆在压簧的作用下起到施加压力的作用，由于压力杆采用钨合金材料，具有高熔点、高机械强度的特点，不会变形，导电杆压力小不易变形，从而延长了整个触头的使用寿命，并且焊点整齐美观。

And the effects of temperature, slenderness ratio, section forms of rods and material characteristic on stability behavior were discussed.

根据弹性稳定理论研究了变截面杆在火灾环境下的静力特性问题，导出了火灾条件下变截面杆件的静力稳定临界荷载和临界长度计算式，讨论了温度、长细比、杆件截面形式、材料特性等因素对杆件稳定临界荷载和临界长度的影响。

Finally, the new approach is extended to synthesis planar six-bar linkages, so that a unified model is established from synthesis of planar four-bar linkages to that of planar six-bar linkages.

本文最后将平面四杆机构综合方法推广到平面六杆机构的综合中去，建立了从四杆到六杆的一致的优化模型。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。