平衡原理

Based on the study of the patent,the configuration and the action principle of a new variable displacement of double-action vane pump is discussed,which consists of floating block s.

介绍一种在专利技术基础上，含有浮动块的新型平衡式变量叶片泵的结构和工作原理，该泵应用在汽车转向助力泵等工况，是一种较有应用前景的新型叶片泵。

This paper discusses the configuration and the action principle of a new variable displacement of double-action vane pump, which consists of a floating block .

本文介绍了一种基含有浮动块的新型平衡式变量叶片泵的结构和工作原理，通过计算进行了流量输出对比，证明该泵应用在汽车转向助力泵等工况，是一种较有应用前景的新型叶片泵。

The base principal in controlling method is madding aerodynamic force acting on transmission line changed into approximate balance state.

此方法的基本原理是：使作用在输电线上的气动力近似地成为平衡力系，从而控制输电线舞动。

The base principal in controlling method is madding aerodynamic force acting an transmission line changed into approximate balance state.

此方法的基本原理是：使作用在输电线上的气动力近似地成为平衡力系，从而控制输电线舞动。

In this thesis,based on the DFT+NEGF first-principles method,we construct a lead-molecule-lead sandwich system with single benzene-based molecule to investigate the relationship between the structure and properties of the molecular devices and the factors that influence properties of the molecular devices.Our computational investigations on these molecular devices are primarily concentrated on the effect of contact geometry between molecules and electrodes,the effect of side groups,the effect of different torsion angle between two phenyl rings and the effect of external electric field.This thesis consists of five chapters:In Chapter one,we mainly introduce the research background and development of the molecular electronics,including the experimental fabrication of molecular electronic components and theoretical simulation methods.Afterwards we discuss the questions that need to be solved in this area.Finally,the main contents of this thesis are listed.In Chapter two,we introduce the theoretical methods used in this thesis, including the main first-principles calculation methods,i.e.,the Density-Functionmethod and nonequilibrium Green\'s function.

本论文拟采用密度泛函理论和非平衡格林函数相结合的第一性原理计算方法，选取苯基小分子作为研究对象，构建了金属电极/有机小分子/金属电极三明治结构体系，系统地研究了苯基分子器件结构的改变与分子电输运性质之间的关系以及影响分子器件电输运性质的相关因素，其中重点研究了分子与电极间可能的接触结构改变、官能团、分子间的扭转角以及外电场对苯基分子电输运性质的影响，本论文主要包括以下五个章节的内容：第一章为综述部分，主要介绍了分子电子学产生的背景、分子器件的研究意义、当前研究分子器件的实验和主要理论方法，以及目前在研究分子器件中存在的一些问题，最后给出了本论文的主要研究内容和技术路线。

Archimedes in physics two main job, one is about balance, lever principle that belongs to this.

阿基米德在物理学方面的工作主要有两项，一是关于平衡问题的研究，杠杆原理即属于此。

Based on the principle of electrodynamic vibration system, the reason of armature vibration central excursion is simply analyzed.

根据电动振动台的工作原理，简要分析了电动振动台动圈平衡位置漂移的原因。

Pressure governor valve is the use of a spring-loaded power and pressure balance theory, when the spring-loaded pressure less than atmospheric pressure and the valves closed when the pressure is greater than the spring-loaded rubber tubing stretch when the bottom of compressed air diaphragm, diaphragm the effort to promote diaphragm upward and left vavle seat blow the air flow of gas, this would piston shirking role in the pressure mobile, Selection will be emissions from valve seat, air compressors made by the then air into the gas valves and exhaust emissions is through the mouth into atmospheric air compressors idling.

调压阀的原理是利用了弹簧力与压力相平衡的原理，当弹簧的压力小于气压的时候阀关闭，当压力大于弹簧的弹力时候橡胶调压膜片下方的压缩空气对膜片的用途力，推动膜片向上拱曲离开阀座而使空气流入气腔，此时卸荷活塞在气压用途下移动，将排放阀门推离阀座，于是由空气压缩机充入气腔的空气便通过排放阀和排气口排入大气空气压缩机空转。

On the basis of equal probability principle, Boltzmann statistic s and ensemble statistic s, this paper has derived the statistic al distribution function on multimember system in the quasi-independent particles and obtained the equivalence between

文摘：利用平衡态统计物理的等概率原理，玻耳兹曼统计法和系综统计法，导出在平衡状态下多种近独立粒子系统的粒子数分布。结果表明，对于宏观系统而言，玻耳兹曼统计和系综统计是等价的。

The DC sensing theory and method based on magnetic potential self-balance and feedback compensation are studied in this paper.

本论文研究了一种基于开环原理与闭环原理相结合的磁势自平衡回馈补偿式直流传感机理与方法及其实现。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。