热力学第一定律

The Encyclopaedia Britannica concludes the perpetual motion article: In the course of his long career Keely may have broken a number of laws, but he left the first and second law of thermodynamics ...

" 大英百科全书结束永动机文章："在他漫长的职业生涯Keely可能打破了一些法律，但他留下的第一和热力学第二定律。。。

The idea that energy is conserved is the first law of thermodynamics.

能量守恒这一概念是热力学的第一定律。

All human beings obey the first law of thermodynamics.

所有的人都在遵循热力学的第一定律。

Clearly, a refrigerator, which is a physical system must obey not only the first law but the second law of thermodynamics as well.

很明显，冷冻机是一种物理系统，因此它不仅必须遵从第一定律，也必须遵从热力学的第二定律。

It analyzes the unreasonable way of using steam in iron and steel enterprises at present,namely the quality loss situation of temperature and pressure reduction,and proposes the improvable measures of combined heat and power .

以蒸汽利用的热力学第一、第二定律理论为依据，提出了合理用能所遵循的原则及其评价指标，分析了目前钢铁企业蒸汽利用的不合理方式，即减温减压的品质损耗情况，并就其提出了热电联产的改善措施。

In addition, the mass transfer process of main components in the heat pump cycle, such as a generator and an absorber, is analyzed, and the mass trasfer model, the relation of its separation effectiveness with the thermodynamic inconvertibility are described.

根据热力学第一、二定律，从理论上建立了描述该类热泵的数学模型。从热力学不可逆性原理出发，分析了热泵循环过程的热力学不可逆性引起的〓损失。

Course Content: Temperature, Kinetic Theory of Gases, The Statistic Distributions of Velocity and Energy of Molecular Thermal Motion, Transportation Process in Gases, The First Law and Second Law of Thermodynamics, Phase Changes of Solid and Fluid Bodies

课程内容：温度、气体分子运动论的基本概念、气体分子热运动速率和能量的统计分布、气体内的输运过程、热力学第一、第二定律，固液体相变。

This paper discusses two questions about the first and the second lows of thermodynamics in teaching so as to point out that a whole understanding of the reversible process character is the key to the problem.

本文讨论了热力学第一和第二定律教学中，两个学生质疑产生的原因，指出全面理解可逆过程的特点是问题的关

The methods of analysis and evaluation of thermodynamics of LiBr-H2O absorption cycles are set up. Firstly, Based on the utilization of The First and Second Law of thermodynamics, the ideal combined Camot Cycle model is set up. Secondly, Aimed at the insufficient of the classical thermodynamics analysis method, the popular method-- Finite Time Thermodynamics analysis is applied to set up the model of endo-reversible combined Carnot cycle. Finally, the optimization relationships between the specific heating load and operating parameters and between SHL and COP are conducted according to the characteristics of the function and investment of AHT.

在首先利用热力学第一、二定律分析方法的基础上，建立了吸收式热变换器的理想联合卡诺循环模型，然后针对经典热力学分析方法的不足，利用了当前很流行的有限时间热力学分析手段，建立了AHT系统内可逆联合卡诺模型，根据热变换器的功能、投资等方面的特点，导出了吸收式热变换器比供热率与操作参数、比供热率与热力学性能系数的优化体系。

Using the large eddy simulation and particle direct simulation, the diffusion of particle in sudden expansion pipe is modeled.

对江水换热引起的污垢热阻，采用热力学第一、二定律和熵产分析法，分析污垢对管内对流换热过程性能的影响。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷