查询词典 Plastic

The main research contents are as follows:1. Through massive calculation, analysis and comparison, sum up the similarities and differences between the special-shaped cross sections and rectangular cross sections in mechanical features, between reinforced concrete special-shaped columns and rectangular columns in load-bearing capacity, ductility performance and provide necessary basic concepts and data for further understanding the characteristics of the special-shaped columns;2. Through massive elastic calculations and elasto-plastic analysis, under the preconditions of satisfying the code's requirements for axial compression ratio, limit value of lateral displacement and load-bearing capacity of normal section,oblique section and beam-column joint, under circumstances of different intensity of earthquake, structure dead weight, sort of site and column grid bay dimension, the variation regularity of maximum suitable height of structure, and thus sum up the maximum suitable height of structure for code for the purpose of macro-control while deciding the design scheme;3. Make a preliminary study on the stress feature of reinforced concrete special-shaped column and Z-shaped column of which the ratio of limb length to limb thickness is between 4~5 ,and the preliminary design method is suggested;4. Through elato-plastic time history dynamic analysis of typical projects, check up the weak storey of the special-shaped column structure and yielding, breaking and collapse mechanism to satisfy the earthquake resistant requirement to buildings of remaining stand under strong earthquake;5. Derive for project use simplified calculation formula of vibration period, suitable vibration period, suitable rigidity of special-shaped column structure through theoretical analysis, and provide an easy and practical method for deciding the structure scheme economically, safely and reasonably;6. Based on the study achievements in theory and massive analysis and calculations of this paper, sum up the regularities of inner force, deformation of special-shaped column structure and seismic conceptual design, and thus the suggection of seismic design of special-shaped column structures is presented.

本文研究的主要内容如下：通过大量的计算、分析和对比，总结出异形截面与矩形截面在力学特性、钢筋混凝土异形截面柱与矩形截面柱在承载能力、延性性能等方面的异同，为深入了解异形截面柱的特点提供必要的基本概念和数据；通过大量的弹性及弹塑性计算分析，在满足规程对轴压比、侧移限值及正截面、斜截面、节点承载力抗震验算要求的前提下，在不同抗震设防烈度、结构自重、场地类别及柱网开间尺寸情况下最大适宜高度的变化规律，并在此基础上总结归纳出异形柱结构的最大适用高度规定，可用于规程，以便于在确定方案时起到宏观控制的作用；对肢长与肢厚比在4～5的钢筋混凝土异形截面柱及Z形柱的受力特点进行初步探讨，提出初步的设计方法；通过对典型工程的弹塑性动力时程分析，检验异形柱结构的薄弱层及屈服、破坏、倒塌机制，以达到建筑物大震不倒的抗震设防要求；通过理论分析，推导出异形柱结构自振周期，以及适宜自振周期、适宜刚度的工程实用简化计算公式，为经济、安全、合理地确定结构方案提供简便实用的方法；在本文理论分析、计算以及大量的研究成果基础上，总结归纳出异形柱结构内力、变形的规律及抗震概念设计内容，并在此基础上提出异形柱结构的抗震设计建议。

Traditional plastic injection molding machine relies on constant rate pump in oil supply, and each action in the process of plastic injection may have different requirements on speed and pressure. The surplus oil flows back to the oil tank through the proportioning valve in the way of flooding adjustment. In the whole process, the rotation speed of motor remains unchanged, so the oil volume is fixed as well. Furthermore, the action is intermittent, and not of full load, so a great amount of oil is wasted.

传统的注塑机是采用定量泵供油的，注塑过程的各个动作对速度、压力的要求也不一样，它是通过注塑机的比例阀采用溢流调节的方式将多余的油旁路流回油箱，在整个过程中，电机的转速是不变的，故供油量也是固定的，而由于执行动作是间隙性的，也并不可能是满负载的，因此定量供油就有很大的浪费空间。

External Ear Plastic Center,Plastic Surgery Hospital, Chinese Academy of Medicine Sciences and Peking Union Medical College, Beijing ,

作者单位：1 中国医学科学院中国协和医科大学整形外科医院外耳整形与再造中心（北京，100041）；2 内蒙古通辽职业学院解剖教研室

Our company is specialized in the production of plastic core transformers, power shell, plastic products businesses.

本公司是一家专业生产变压器胶芯、电源外壳、塑胶产品企业。

Division I professional production of various kinds of points, plastic cloth, also known as drop cloth, point bead cloth, plastic cloth, etc.

我司专业生产各类点塑布，又称滴塑布、点珠布、胶点布等。

FRPoperation is aHuadu District, Guangzhou, Sanitary Ware Factory external display products to enhance the communication window, the plant has long been engaged in glass fiber reinforced plastic products, research, production and development, in order to adapt to market needs, recently developed a "jade Pose" series of sanitary products, computer shower room, simple shower room, shower columns, glass fiber reinforced plastic resin washbasins, glass-steel decorative door, all the raw materials are selected to achieve the national quality standard products, all product quality issues, implementation of "three bags."

玉壶玻璃钢经营部是广州市花都区玉壶洁具厂对外展示产品、加强沟通的窗口，该厂长期从事玻璃钢产品的研究、生产和开发，为了适应市场需要，近期开发出&玉姿&系列卫浴产品，有电脑淋浴房、简易淋浴房、淋浴柱、树脂玻璃钢洗手盆、玻璃钢装饰门，所有原材料均选用达到国家质量标准的产品，凡属产品质量问题，实行&三包&。

Considering the problems of spurgear precise plastic forming, such as high deformation resistance, poor flowability and especial hardness to fill cant of gear, technological plan was developed based on precise plastic forming technique, successive control principle and consecutive local deformation theory. Moreover, structures of the rolling preform die and the die with up and down wellrounded forcer for stamping-extrusion and bulge-extrusion combining forming were designed too.

因此本文的主要研究内容和结果如下：本文以某种直齿轮：模数m＝2，齿数z＝20，压力角α＝200，变位系数x＝0为对象，针对直齿轮精密塑性成形变形抗力大，流动性差，特别是成形中齿轮角隅部分更加难以充满问题，基于精密塑性成形技术、逐次控制原理以及连续局部变形原理提出了&直齿轮滚轧制坯－镦挤、胀挤复合精成形&的工艺方案，设计了滚轧制坯的模具结构和上下冲头带圆角的镦挤、胀挤复合精成形的模具结构。

Pad Series: EVA, SBR, jai plastic, NBR foam, PVC foam, rubber, silicone, high foam, sponge, sound-absorbing cotton, filters, activated carbon, cotton, non-woven, flannel, conductive cloth, conductive foam , conductive plastic, mica film, foil paper, foil paper, flash paper, fluorescent paper, PET, PVC, fast Pakistani paper, barley paper, release paper, magic, protection film, static film, EPE EPE, Poly Liuzhou.

胶垫系列：EVA、SBR、回力胶、NBR发泡、PVC发泡、橡胶、硅胶、高发泡、海绵、吸音棉、过滤网、活性碳棉、不织布、绒布、导电布、导电泡棉、导电胶、云母片、铝箔纸、铜箔纸、闪光纸、荧光纸、PET、PVC、快巴纸、青稞纸、离型纸、魔术贴、保护膜、静电膜、珍珠棉EPE、保利龙。

The design of the connecting rod graduated plastic parts plastic parts mainly from the performance analysis of material considerations.

本次毕业设计的连杆塑件主要从塑件的性能，材料的分析等考虑。

In the late 1950s, two inventors, Alfred Fielding and Marc Chavannes, were attempting to create a plastic, textured wallpaper. Their invention of sheets of plastic with air trapped between was unsuccessful as wallpaper, but when the two hit upon the idea of using it for packing material, they hit paydirt.

50年代后期，阿尔弗雷德·菲尔丁和马克·夏万尼两位发明家想做一种塑料、纹理墙纸，他们想把发明的中间充满空气的塑料薄膜用作墙纸并未成功，但两位发明家突发奇想，把这种发明用作包装材料，他们一下子发现了聚宝盆。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。