实际气体

It is pointed out that the heat capacity of a polytropic process is not certainly a constant, and that the adiabatic process can not be regarded as a special case of polytropic process.

状态方程为 p Vn=c。定义 2 [4 ] 理想的等温过程、绝热过程都是难以实现的。气体状态变化时，总是和外界进行部分热交换，实际过程介于上述两个理想过程之间。

From energy balance equation, using micro-piece analytical method, heat balance equation for high power fast axial flow CO〓 laser tube is established with the boundary conditions of actual fast axial CO〓 laser, the analyzed solution of the temperature distribution in the laser tube is obtained.

并应用热传导的物理边界条件，求出了热能平衡方程的解析解，得到了实际器件放电管横截面内的气体温度分布公式及温度分布曲线，并求得了激光功率变化对热致负透镜焦距的影响关系式。

Aiming at analyzing safety factor influencing the gas , direct labor and main factor influencing the continuously operating of gas production equipment and supply dependability .using safe economics view, combining Hua ling heng yang steel groups gas supply reality, this text explain gas supply safety management should catch person, thing and environment three important factors and propose adopting the following measures ,such as the management by objectives, the leading education and training, the management of the equipment state, the perfectness of the good environment, the strengthening of class construct and the perfectness of OHSMS system ,etc.

针对影响气体、生产工人的安全因素和影响气体生产设备连续运行及供应可靠性的主要因素的分析入手并运用安全经济观学观点，结合衡钢供气实际，本文着重阐述了供气安全管理要抓住人、物及环境三个重要因素，并提出采取目标管理，超前教育培训，设备状态管理，完善良好环境，强化班组建设及完善OHSMS体系等措施。

1Binding engineering actual,problem,the thesis has researched theoperational principle of gas operated of rapid-fire guns and changing of power gasin rapid-fire guns.According to hydrodynamical rationale,the equation thatdescribed changing of gas in the room of gas operated and moving law of pistonhave been derived.

1结合工程实际讨论了某型自动火炮的自动机的工作原理及自动机中火药气体的变化过程，根据流体力学的基本原理推导了描述自动机气室中气体压力变化和活塞运动规律的基本方程。

To cope with the stink from Shanghai Liangcheng Pumping Station, the basis and general description of the design of the gas collection system, deodorizing device and.

本文针对上海凉城泵站的实际恶臭情况，介绍了恶臭气体收集系统、恶臭预处理设备、恶臭生物处理设备的设计依据、设计概况和实际运行情况。

For example, a regenerative reheating furnace fluid flow and heat transfer is researched, which has simplified the flow and heat transfer of hot air stove according to its real operating conditions.The fluid flow and heat transfer of a hot air stove are numerically simulated by using finite volume method or finite difference method,which bases on the heat transfer equation,flow equation of the gas and heat balance equation.

根据热风炉的实际运行状况对蓄热式热风炉内的流动换热过程进行了合理的简化，并基于热传导方程、气体流动方程和气体的热平衡方程，建立了蓄热体的非稳态传热模型，在对模型利用有限差分法和有限容积法得到离散方程的基础上，采用C 语言编制了模拟计算程序。

The process of air dust transporting and its control requirement are analyzed,its hardware and design idea and control flow of main software are introduced.

分析了气体输灰工艺及其控制要求，介绍了气体输灰系统的硬件组态及主要软件的设计思路和控制流程，该系统在实际使用中具有操作简便、运行稳定可靠等优点。

To solve the problem, a three-point bending test was put forward.

中文摘要：针对以Q450NQR1钢为基板、B级钢为腹板模拟实际工装位置，疲劳断裂与货车运营实际工况不符的问题，提出以B级钢为基板、Q450NQR1钢为腹板进行三点弯曲疲劳试验，诱使疲劳裂纹向B级钢侧扩展，研究了MAG气体保护焊B级钢/Q450NQR1钢搭接接头的疲劳性能。

To assure extinguishing efficiency of the fire suppression system on fire, the system is requested to perform enclosure integrity test in accordance with NFPA 2001 standard. For reducing the high cost of test, this thesis proposes a method of using backpropagation neural network to simulate the field test and estimate the retention time when the suppressant is discharged, the result can be a reference of self-survey and the improvement prior to fire inspection.

为确认气体自动灭火系统安装后，是否能於火警发生时立即发挥灭火功效，我国内政部消防署要求业主须依照美国国家消防协会NFPA 2001规定，进行防护区空间气密测试，然实际於现场进行气密测试耗费人力并且所费不赀，本论文提出以倒传递类神经网路模拟现场气密测试，估测灭火气体释放后防护区气密时间，以作为消防检查前自主检查及改善之参考，确保火灾发生时系统能达到真正灭火的功能而防患未然。

The detection of indication gases from coal"s self-heating is extensively applied to mine"s security. However, sometime the instrument can"t directly detect the trace gases released by coal"s self-oxidation.

指标气体法预报煤炭自燃在实际应用中发挥了重要的作用，然而由于受到仪器检测灵敏度的影响，使指标气体法在许多场合的应用受到限制。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。