在讨论热力学第三定律的时候，我们讨论过压强变化，即对于纯净的完美晶体，随着温度下降到绝对零度熵也变成零。
We looked at pressure change before, actually, in discussing the third law, the fact that the entropy goes to zero as the absolute temperature goes to zero for a pure, perfect crystal.
如果我们测量热力学量会发现自由焓的变化,等于4千焦，正4千焦。，delta，H，is，4，kiloJoules，，plus，4，kiloJoules。,熵增dS是45焦耳每开尔文。
If we measure the thermodynamics, we discover that dH Delta S is 45 joules per Kelvin.
通过追踪该比率随时间的变化，他可以确定氡气到达地表需要花费多长时间，同时获得气体所通过的岩石的化学、热力学和机械状态。
By tracking this ratio over time, he can determine how long gas has taken to reach the surface and gain clues to the chemical, thermal, and mechanical state of the rocks the gas is passing through.
并从色谱热力学函数分析了保留指数随温度变化规律的主要原因是由于在色谱分离过程中不同的熵变和焓变所造成的。
The changing law of retention index with temperature from chromatographic thermal function resulted from the variation of the different entropy and enthalpy during the chromatographic separation.
本文通过不同参量图中的过程图线来分析热力学系统在一定过程中的内能、功和热量的变化情况。
This article gives an introduction of the variations of inner energy, work and energy in the thermodynamics by means of different parameter charts.
作者认为载荷频率的上述影响是因裂纹尖端的应变速率随载荷频率而变化，从而改变了裂纹起始与扩展的热力学条件。
The authors suggest that this effect is due to the change in the strain rate of crack tip metal thus altering the thermodynamics of crack onset and growth.
沥青质沉积主要是原油所处热力学条件变化，原油中沥青质絮凝并沉降的结果。
The asphaltene deposition is the result mainly of asphaltene particles flocculation and precipitation in petroleum when the thermodynamic conditions changed.
本文从动力-热力学方程出发。得到反映热带气旋强度变化的参数和几个物理因子。
In this paper the parameter and some physical factors, which reflect the intensity change of tropical cyclone, are derived from dynamical and thermodynamics equations.
总结了复合微粒形态的热力学预测方法，尤其对界面自由能量的变化最小原则进了评述。
The thermodynamic approaches to predict particle morphology were summarized and the rule of minimum interfacial free energy change was discussed in detail.
增加了挤压的生产时间这一变化是好的，但也增加了正向挤压的热力学问题。
This change is good for increasing the productive time of the press but it increases the natural thermodynamic problem with the direct extrusion press.
增压锅炉负荷变化时，烟气侧热力学特性将发生改变。
The thermodynamic characteristics of flue gas will change as the load of a supercharged boiler changes.
比较了两种卤水的热力学性质及其变化的规律，揭示了其天然卤水浓度差异的物理化学成因。
The thermodynamic properties were compared between the two brines, and a cause of formation of the differences in concentrations between the two brines has been indicated physicochemically.
本文通过列车运行试验并用热力学和流体力学的方法研究了KLD40型空调机组冷凝风量以及制冷量等性能变化。
The performance of the KLD40 air-conditioning unit by the test and the methods of thermodynamics and hydrodynamic were researched.
为模拟激光介质的温度、热应力的分布和变化，建立了激光介质热力学计算模型。
The thermodynamic model was established for analyzing the temperature and the thermal stress in laser medium.
储存过程中LNG的气液两相组成和热力学性质一直随着液体的蒸发而不断变化的，模拟计算时需要对LNG热物性进行计算。
Composition and thermodynamics character of LNG vapor and liquid vary as liquid's vaporizing, so LNG physical characteristic must be calculated in the simulate process.
热力学计算也表明不同气氛下痕量元素的形态变化过程有很大差异，还原气氛下痕量元素会生成不稳定的次氧化物和还原性产物。
The thermodynamics calculation also indicate the transformation of trace metal was different with different atmosphere, suboxidized and reduced species were more easily formed under reduced condition.
根据气液两相相平衡热力学模型研究了某挥发油油藏在注天然气过程中油藏体系相态特征的变化规律。
Based on a thermodynamic model of gas_liquid equilibrium, the variation of phase behavior in a volatile oil system during gas injection has been investigated.
通过热力学方程的推导和中试实验，分析了吸收式热泵性能参数随不同操作条件变化的规律，并讨论了最佳参数的选择问题。
By thermodynamics equation describing and pilot plant research, the effect of different operating conditions on their performance is studied and analyzed.
从电合成实验和纳米热力学两方面，考察二氧化钛热处理时的相态和尺寸变化规律。
From both electro-synthesis experiments and nanothermodynamics, the phase states and size changes of heat-treated titanium dioxide powders, synthesized by direct electrolysis, are investigated.
超薄反射镜具有重量轻的优点，但它极易受各种力学、热力学等环境的影响，因而其面形易发生变化。
Although a membrane mirror has a light weight, its surface is easily deformed due to certain mechanical and thermodynamic factors.
研究发现热力学因素同时也会改变体系的动力学不对称因素，导致特征松弛时间随之发生变化。
The results also suggested that the thermodynamic factors could alter dynamic asymmetry as well as characteristic relaxation time.
采用感应加热研究X 70控轧钢弯管二次加热力学组织、力学性能随着淬火温度、回火时间的变化规律。
Using the method of induction heating, the regulation of the variety of X70 controlled rolling steel bends'mechanics structure and mechanics property in secondary heating is investigated.
在分析热力学熵的基础上，构造了道路交通系统的类热力学熵，揭示了道路交通系统类热力学熵产生的内部机制，并通过熵理论建立了系统状态变化的微分方程。
On the basis of the analysis of the thermodynamics entropy, the thermodynamics entropy of the road traffic system is built up, and the mechanism of the entropy producing is revealed.
应用有限时间热力学理论研究了发动机热力循环过程中由于外不可逆性导致的熵的变化。
On the basis of the finite time thermodynamics, the change of entropy due to the external irreversibility in engine heat cycle process was discussed.
如果你计算能量变化，就像在化学热力学中所作的一样，你会发现很大的负的。
And if you work out the energetics as we've gone with thermochemistry, dH you discover there's a huge negative delta h.
运用不可逆热力学原理，对气泡传质过程进行了理论分析，讨论了非稳态、稳态、平衡态的差异及其变化规律。
The theoretical analysis on bubble mass transfer process was made by the non reversible thermodynamics. Non steady state, steady state and equilibrium state and changing regulation were discussed.
根据实验结果，定性分析了橄榄石、辉石晶体结构随温度变化及热力学参数的变化规律。
According to the experimental result, we have analyzed the change of the crystal structure of pyroxene and olivine and the changing regula...
采用损伤演化方程可以从宏观上描述损伤变量以及与其相伴的广义热力学力——损伤能量释放率的变化规律。
The variation rule of the damage variable and the coupled variable, damage energy dissipation rate, can be described on macro aspect by the damage evolution equation.
有必要把代表水汽凝结潜热释放的随时间变化率的一项作为热源项包括进热力学能量方程中。
It is necessary to include as a heat source in the thermodynamic energy equation a term which represents the time rate of release of the latent heat of condensation of water vapor.
主要工作如下：（1）对国内外关于钢筋及混凝土热力学参数随温度变化的规律进行了归纳总结；
The primary tasks are as follows:(1)The laws of parameters about reinforcing steel and concrete along with temperature at home and abroad are summarized .
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