实际气体

The static model of torsion joint is based on that of bending joint. The effects of structure parameters inside air pressure, initial angle, rube average radius, rube shell thickness on the turning angle are analyzed and the following conclusions are drawn: the relationship between the angle of torsion joint and the inside air pressure is basically linear, the angle of torsion joint increases with the initial angle and rube average radius, the angle of torsion joint decreases while the rube shell thickness increases. The kinetic equation is built for torsion joint. Simulating experiment implies that the time of inflating and deflating process is extremely shorter than that of kinetic process. So the pneumatic process can be ignored in actual system design and control. The factors that affect the dynamic features of torsion joint, such as shell thickness of rubber tube, average radius, initial angle, connector's outlet area, moment of inertia and viscous damping coefficient, are analyzed and the following conclusions are drawn: the change of rube shell thickness has no effects on the dynamic process of FPA inside air pressure while greatly affects the turning angle of torsion joint; when the rube shell thickness is small, the torsion joint has a bigger turning angle, no overshoot and long risetime, when the shell thickness is big, the turning angle of torsion joint is small, but has high response speed, overshoot and low shock; when the rube average radius increases, the turning angle of torsion joint increases and the overshoot increases too; when the initial angle of torsion joint is big, the turning joint is big, the overshoot is small and shock is low, but the risetime is big; the connector's outlet area affects the dynamic process of FPA inside air pressure greatly, but has no effects on the dynamic process of turning angle; moment of inertia and viscous damping coefficient have no effects on the dynamic process of FPA inside air pressure, but affect the dynamic process of turning angle greatly.

在弯曲关节模型推导的基础上，建立扭转关节的静态模型，并分析了扭转关节内腔压力，初始转角，橡胶管平均半径，橡胶管壁厚等参数对关节转角的影响，得出扭转关节的转动角度与充入FPA内腔的压缩气体压力之间基本呈线性关系，扭转关节的转角随初始角度和橡胶管平均半径的增大而增大，扭转关节的转角随橡胶管壁厚的增大而减小的结论；建立了扭转关节的动力学方程，仿真实验表明FPA的充放气过程与扭转关节的动力学过程相比时间极短，在实际系统设计和控制过程中可以忽略不计；分析讨论橡胶管壁厚，平均半径，初始角度，气体节流口面积，转动惯量，粘性阻尼系数等因素对扭转关节动态特性的影响，得出橡胶管初始壁厚的变化对扭转关节FPA内腔压力的动态响应几乎没有影响而对关节转角的响应曲线影响比较明显，壁厚较小时，关节可以得到较大的转角，并且转角的响应曲线没有超调，但上升时间长，壁厚较大时，关节转角变小，响应加快，但是有超调和轻微振荡现象，橡胶管平均半径越大，得到的关节转角越大，但是转角响应的超调量也随之增大，FPA的初始角度越大，关节的转角越大，并且超调量减小，振荡减弱，但是上升时间增大，管接头出口面积的大小对关节FPA内腔压力的建立过程影响较大，但对关节转角的动态响应几乎没有影响，转动惯量和粘性阻尼系数对FPA内腔压力的动态过程几乎没有影响而对扭转关节转角有较大影响等结论。

The measurements of the air dew point and the observation methods of the dropping air dew point were given.

提出了气体露点温度的测量方法和气体降露时刻的观测方法，分析了测量方法的科学性，给出了实验分析和实际使用步骤。

The present paper focuses on the effect of spectral range on the detected characteristic absorption structure of O3, and the variation of differential cross section of O3 with the change in spectral range and the source of interference in different spectral range.

文章主要研究了在不同光谱波段O3特征吸收结构和差分光学厚度的不同，在不同光谱波段O3浓度反演的干扰来源以及影响程度，确定了实际检测时大气消光对不同波段光强的影响，最后通过对多种污染物标准气体进行了同时监测，计算出标准气体在不同光谱分辨率不同O3浓度时的测量误差，确定了对O3的最适用光谱波段范围。

Since the High-Lying Vibrational excited levels and dissociate behavior of gas diatomic molecules: H2, O2, N2 and CO are very important in actual studies and applications, using the algebra method and the algebra energy method to obtained full vibrational energy spectra {E} and molecular dissociation energies are base on limited experiment energy level {E} in this paper. The study result has provided the important high vibrational excited state energy level and the reliable dissociation energy data for the research partial dissociating gas physics and the chemical property.

鉴于气体双原子分子H2、O2、N2和CO的高振动激发态能级和离解行为在实际研究中的重要性，本文应用代数方法和代数能量方法，以部分气体双原子分子有限的实验能级［E］为基础，获得了H2-X1Σ、O2-A^3Σ、O2-c1Σ、N2-X1Σ和CO-X^1Σ共5个电子态的完全振动能谱｛E｝及其分子的离解能，为研究部分离解气体的物理和化学性质提供了重要的高振动激发态能级和可幸的离解能数据。

Owing to the monotonic mapping of fuzzy structured element established the homeomorphic property between fuzzy number space and the family of standard bounded monotone function, so, we can transform the study of any properties in fuzzy number space to the corresponding one in the family of standard bounded monotone function, e.g.

本项目针对矿井下采空区岩石陷落形成的多孔隙介质空间的极度不规则性，建立一种以模糊值函数分析学为基础的、更接近于刻划采空区内气体流动实际状况的模糊微分方程及各种边值问题，进而得出解算复杂采场气体模糊渗流问题的数学方法。

But if the surrounding temperature is between -100 and 25 centigrade, the ideal gas equation cannot satisfy the practice demand.

但是，如环境温度在-100℃～25℃的低温条件下，理想气体状态方程往往就不能满足实际计算的需要，这就需要低温下能较为正确地描述气体热物性的方程。

The paper commencing with analyses of the basic property of the hydrate, structure and sort, analyzes micro kinetics, formation condition, gas hydrate formation mechanism and influencing factor in high sulfur; also proceed analysis in depth for existent hydrate prediction model; according to gas dissolving, hydrate lattice deformation, synergistic action of inhibitor, carry out analytical study for existent error between normal forecast model and physical condition; introduce key parameter theory to establish and modify prediction model of hydrate formation condition to suit for high sulfur gas reservoir and inhibitor system, analyses different kinds of prevention and cure measures to influence of hydrate; finally, through field application in high sulfur gas reservoir hydrate.

本文从分析水合物的基本性质、结构与分类出发，分析了水合物生成过程中的微观动力学、生成条件、高含硫天然气水合物生成机理以及影响因素；并对现行的水合物预测模型进行了深入剖析，根据气体溶解、水合物晶格变形、抑制剂协同作用等因素对常规预测模型与实际条件之间存在的误差进行了分析研究；通过引入关键参数理论，建立并改进了适合高含硫气藏水合物生成条件预测模型及抑制剂体系的高含硫水合物生成条件预测模型，分析了各种防治措施对水合物的影响；最后通过高含硫气藏水合物实例计算，分析了含硫化氢、二氧化碳组分的天然气与常规气体对水合物生成条件的影响，并对各种水合物防治措施进行了实例计算。

The production performance of a gas reservoir idicates that the starting pressure phenomenon occurs in gas flow just as the one occurs in liquid flow and the gas "slippage effect" seems to be contradictious to its starting pressure, therefore it is very necessary to study the generation condition and change law of the both through testing.

实际气藏的生产特征反映出气体渗流与液体一样存在启动压力现象，而气体的&滑脱效应&似乎与气体的启动压力现象相矛盾，所以极有必要通过试验来研究气体二者现象产生的条件及变化规律。

In this paper,the condition that gas flow through wood in the pattern of linear flux wasdetermined from the theories of thermodynamics and fluid mechanics.The expression of flow-resistor of tracheids is reduced with the continuity equation and the equation of motion indifferential form.The flow-resistor network is constructed by means of the theory ofpercolation.The equivalent flow-resistor was evaluated by utilizing the real spacerenormalization approach.

本文根据针叶材管胞的解剖结构，运用孔隙介质流体力学的理论，导出了管胞关于气体渗透流阻的数学表达式；继而根据管胞纹孔在三个纹理方向上的连接特性，利用管胞流阻建立了一个描述针叶材三个纹理方向气体渗透性的三维流阻网络；然后运用实空间重整化变换的方法，求解试件流阻网络三个纹理方向的等效流阻，并由此计算试件相应的气体渗透系数；最后用我国南方常见的人工林马尾松木材试件进行渗透系数实际测量，与理论计算结果进行对比分析，以验证三维流阻网络及其理论的准确性。

The relationships between gas pressure and volume in the pressure accumulator under the conditions of the state of constant temperature and thermal isolation are measured, and practical gas polytropic exponent is fitted.

对蓄能器气体等温状态变化和绝热状态变化下的气体压力-容积变化特性进行实验测试，并拟合出实际的气体多变指数。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。