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The research of this paper is the main work of the cooperating item "the dynamic analysis and seal project research of the rotary control head homemade" between the Southwest Petroleum Institute and Talimu Prove Impolder Headquarters.

本论文的研究工作是西南石油学院与塔里木勘探开发指挥部的横向合作项目&旋转控制头动力学分析与密封方案研究&的主要研究工作。

This paper,by the example of oil extraction works 5 of Huabei oilfield,according to calculating and analyzing automatically of the computer from important factor parameter and test result of work map of influence machine well,will present a new method of machine well ABC sort management.

本文以华北油田采油五厂为例，从影响抽油机井的重要因素参数、功图侧试结果等量的角度出发，通过计算机自动计算、分析，提出了抽油机井ABC分类管理的新方法，为及时进行油田开发决策提供科学理论依据。

This paper,by the example of oil extraction works 5 of Huabei oilfield,according to calculating and analyzing automatically of the computer from important factor parmeter and test result of work map of influence machine well,will present a new method of machine well ABC sort management,It will provide a science theory of decision-making for oilfield development in time.

本文以华北油田采油五厂为例，从影响抽油机井的重要因素参数、功图测试结果等量的角度出发，通过计算机自动计算、分析，提出了抽油机井ABC分类管理的新方法，为及时进行油田开发决策提供科学理论依据。

This paper summarizes the study progress on the impending earthquake prediction by Chinese scientists from the method of multi-subject intersection and the internal and external factors coupling. Depending on very hard work during recent years, they get some important signals of predicting impending earthquakes, including the anomalies of infrasonic sound wave, crustal stress, behavior of budgerigars, general geoelectric, geomagnetic, satellite heat infrared and high frequency gravity pulsation.

文章综述了中国科学家从多学科交叉和内外因耦合的科学途径，已在大地震临震信号方面获得了次声波异常、地应力突跳、虎皮鹦鹉跳跃异常、地电和地磁异常、卫星红外异常、重力高频脉冲等临震预测的手段。

To improve the stability of Arcjet discharge plasma in low current and high voltage mode, research on the demand of output characteristics of Arcjet Power Conditioning Unit was conducted. In this paper, based on PWM invertors and current mode control, using MOSFET as the main power device, an Arcjet Power Conditioning Unit was developed. Through adding a closed loop feedback circuit of output voltage, it can make the output characteristics of PCU be positive resistance to ensure the stability of Arcjet discharge plasma. The experiment indicates that this PCU can make Arcjet engine work at high voltage mode (100 V, 10 A) and ensure the stability of arcjet discharge plasma. Finally, it provides the experimental data of Arcjet when working.

为了解决小电流、高电压下电弧火箭等离子体的稳定性问题，研究了电弧火箭发动机对电源调理单元的输出特性要求，基于逆变电源脉宽调制技术与峰值电流型控制原理，以MOSFET为主功率器件，研制了一台电弧火箭电源调理单元，给出了Arcjet工作时的实验数据，通过增加PCU输出电压的闭环反馈电路，可以使PCU的输出外特性呈现正阻性，保证电弧的稳定燃烧，实验结果表明，该电源调理单元能使电弧火箭发动机达到高电压工作模式(100V， 10A)，保持电弧工作的稳定性。

This paper mainly discusses the theory knowledge of the building ,smoothing ,filling and labeling of isolines and their algorithmic realization, as well as an application of isoline in the explain of geology information system, at last it gives some suggested argument about isoline studys next work.

文章主要讨论了等值线的生成、光滑、填充，标注等内容的理论知识和算法实现，以及等值线在地质资料解释系统中的应用，最后对等值线研究的后续工作进行了建设性的讨论。

Just another important performance that the current construction industry, particularly shoulders talent echelon training institutions, as a minority is not the construction of a door pragmatic technical science, but most of the energy and interest will be placed on different architectural theory, Architectural styles research, talking to various irresponsible, the whole story, and thus mislead young students cheating, disdainful at the architectural design of basic skills training in the most disdainful at relevance civil construction design everyday thought "- swan is around the corner" that alone in the ivory tower research paper pile, the great achievements can work.

将建筑当玩物的另一重要表现是，当前建筑界、尤其是担负着人才梯队培养的高等院校中，有少数人不是把建筑当成一门务实的技术科学，而是将大部分的精力和兴趣放在对不同建筑理论、建筑流派的研究上，津津乐道于各种不负责任、以偏概全的奇谈怪论，并以此误导青年学生好高骛远，不屑于建筑设计的基本功训练，不屑于从事最有现实意义的民用建筑设计，天天以为&鸿鹄将至&，以为单靠在象牙塔里研究故纸堆，就能成就伟大作品。

The gap element method is proposed in the paper for two kinds of problems, which include contact problem and gap joint problem. Elasticity contact problem falls into the category of unknown boundary value problems. It follows that the contact area and contact conditions or states can never be determined without special mathematical analysis, which is a very difficult work. The boundary conditions of the contact surfaces are deduced.

文中给出了间隙元法在空间可动部件接触问题中的应用，推导了其几何边界条件和力学边界条件，利用虚功原理推导了含间隙元弹性接触问题的有限元方程式，给出了其数值解法的迭代步骤，并指出了利用间隙单元进行分析的特点。

It won't take long for you to completely abandon those paper ledgers, but PLEASE make a back up EVERY time you work on your bills!

它不用多久你完全放弃这些文件分类帐，但请你作后盾，每一次当你的工作，您的帐单！

Our company is specialized in industrial cleaning paper, cleaning cloth, oil-absorbing cotton and other product development, manufacturing, trading and selling of businesses, whose products are specially design for the development of is that the use of long-fiber pulp or pure non-woven cloth material, does not contain any chemical composition, not to hurt the object surface, lint-free dust, no static electricity, absorption and strong and does not dissolve in water and can be used in conjunction with the solvents and other liquids, consistent quality, inventories do not take up space to improve the working environment, improve work efficiency.

我公司是专业从事工业用擦拭纸、擦拭布、吸油棉等产品的开发、制造、贸易销售为一体的企业，其产品是经特别设计而研制成的，是采用长纤木浆或纯无纺布材料制成，不含任何化学成分，不伤物体表面，不掉毛屑，无静电产生，吸收力强，且不溶于水，并可配合溶剂等液体一起使用，品质稳定，库存不占空间，改善工作环境，提高工作效率。

This paper discusses design and realizable methods of remote test output interface from logical design angle.

本文从逻辑设计的角度讨论遥测输出接口的设计及实现方法。

This also 星体投射plies to buildings, structures and geological features.

这也适用于建筑物和地质特征。