热平衡状态
- 网络thermal equilibrium state;thermal balance
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根据基尔霍夫定律,在热平衡状态下,材料的发射率等于它的吸收率。
According to the law of kirchhoff , the emissivity equals to the absorption rate when the material is at the condition of thermal equilibrium .
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高速重载齿轮传动系统的热平衡状态以及轮齿表面温度的大小对齿轮传动的性能与失效以及齿轮润滑系统的设计与操作控制等有着重要的影响。
Tooth surface temperature and thermal equilibrium conditions have significant effects on gear performance and failure as well as lubrication system in high-speed gear transmissions for aerospace applications .
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特别是等离子体电子数密度被用来评估等离子体是否处于局部热平衡状态(LTE),运用等离子体原子发射光谱技术是以满足LTE条件为前提的。
Specifically , the electron number density makes it possible to evaluate how far the plasma is from the local thermodynamic equilibrium ( LTE ) conditions , which is the precondition for the plasma emission spectroscopy analysis .
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研究轮胎滚动过程中的稳态热平衡状态。
The steady heat balance state of the tire in the rolling process was researched .
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利用悬浮试样在热平衡状态输入功率与能量耗散平衡,从而得到合金的高温热辐射系数。
A method of indirectly measuring the heat emissivity for alloys is presented in this paper .
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为了得到锻模的热平衡状态,提出试探法的新思路求解最佳工作节拍。
Exploring method is first put forward to get best working rhythm for heat balance of die .
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同时,还测试了高温阀在达到热平衡状态过程中,阀体表面关键测点的温度变化。
Meanwhile , the temperatures of the key points on valve-body surface are measured during the transient process of heat transfer .
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在此热平衡状态下,热锻模每一次工作循环吸收的热量等于其向外界散发的热量。
The heat absorbed in one working cycle equals to heat that die distribute to the environment in the same cycle when forging die works under thermal balance .
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将改进的多生境排挤遗传算法应用于核磁共振成像的特形脉冲的优化设计,得出了体系处于热平衡状态时的特形激励脉冲和反转脉冲的具体表达式。
The improved multi-niche crowding genetic algorithm is applied to the optimal design of shaped pulse in magnetic resonance imaging , and the special-shaped excitation pulse and reverse pulse are obtained .
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假定气相与固相处于局部热平衡状态,考虑了辐射换热的影响。
It is assumed that gas phase and solid phase exist in a state of local thermal equilibrium and the influence of radiation heat exchange has also been taken into account .
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而在平静水面的观测中,当水面未处于辐射热平衡状态时,在观测天顶角小于60°时,没有观测到发射辐射的角度效应。
When the water surface is not in thermal stabilization and the view zenith angle is less than 60 ° the angular dependency of water emissivity does not appear in the field measurements .
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如何有效地控制供热管网的热平衡状态,提高供热质量、降低能源消耗,已成为供热企业急需解决的主要问题。
For heating enterprises , more and more important problem is how to control effectively thermal equilibrium state of heat network , to improve the quality of heating and to reduce energy consumption .
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微纳尺度气体流动中,流动进入滑移过渡流区,流场中缺乏足够的分子碰撞,流体逐渐偏离热平衡状态。
In micro - and nanoscale gas flows , the flow falls into the transition flow regime . There are not enough molecule collisions in the flow , so the gas deviates from the equilibrium .
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根据轮胎尺寸、材料性质和工作条件,对滚动轮胎进行了合理假设,建立了滚动轮胎热平衡状态下的简化传热数学模型。
Based on tire dimensions , material properties , and operating conditions , a reasonable supposition was put forward for a rolling tire , and a concise mathematical model was proposed on heat equilibrium state in a rolling tire in this paper .
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在阴燃达到热平衡稳定状态对应的最高温度&峰值温度时(>400℃),第一个条件是自动满足的。
In steady propagation of smoldering , temperature condition is satisfied automatically .
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矿热炉不平衡状态下的基波电流检测方法研究
Research on detecting method of fundamental currents for unbalance submerged arc furnace
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因此,如何保证装载机液压系统在使用过程中热平衡处于正常运转状态,是保证机器正常可靠作业的关键。
So how guarantee loader hydraulic system use thermal balance of course in the working order , it is the key to guarantee normal reliable homework of the machine .
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文中将热锻模连续工作到热平衡状态时的温度场定义为连续工作的温度场。
We define temperature field when die works in thermal balance as temperature field of working in succession .
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本文指出:真空电弧蒸发源中热电子对电离作用通常占统治地位,等离子体近似处于局部热平衡状态。
Abstract This paper has indicated that the ionization by the thermal electron is frequently the dominating mechanism in vacumm arc evaporation source , that the plasma of vacumm arc is approximately local thermal equilibrium ( LTE ) .
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热平衡计算表明,该电池组在300mA/cm2电流密度下放电,当气体利用率为20%时,电池组处于热平衡状态下运行。
By calculation it was demonstrated that the heat balance state in the stack was kept at 300 mA / cm 2 under the utilization of fuel gas and oxidant , 20 % .