Microporous insulation products actually have thermal conductivity values lower than still air, due to their ability to block the three modes of heat transfer ( conduction, convection and radiation). 微孔绝缘材料的热导值低于静态气流,这是由于该产品能阻碍热传递的三种方式的实现(热传导、对流和辐射)。
The power part and the radiator make the electricity air bound;( for example: CPU heat conduction pad, LED special-purpose heat conduction pad) 功率元件与散热器作电气隔绝;(如:CPU导热垫,LED专用导热垫)
Radiation between cell tube and air feed tube and heat transfer by convection and conduction was also included in this model. 在传热模型中,除考虑传导和对流换热外,也考虑了电池和空气进气管之间的辐射换热。
Air tube cooler conduction cooling bolometer 管状空气辐射冷却器
It also differs from conventional hearing aids, which employ air conduction to simply turn up the volume of sound travelling into the ear. 同时也不同于常规的助听器,其是将空气传导的声音简单放大了再传入耳内。
Whole patients 'average preoperative and postoperative air conduction hearing threshold and air-bone conduction gap were not significantly different in speech frequency. 总病例的平均术前、术后气导听阈和骨-气导差在语言频率差异无显著性。
Influence of chronic sinusitis on air conduction hearing threshold of middle ear 次声频段的听力阈值Air(初三适用)慢性鼻窦炎对中耳听阈的影响
Improvement on Air Cooling Efficiency of the Motor Through Changing the Air Conduction Construction of the Fan Cowl 改善风罩的导风结构,提高电机风冷效率
Survey and Analysis of the Pure tone Threshold of Hearing by Air Conduction for Sonar Trainees 声纳学员纯音气导听力的调查分析
The paper presents the principle of hearing testing technology, such as air conduction test, bone conduction test, masking technology, double ear sonorous blance, short increment sensitivity index, and the audiometer as hearing testing tool. 本文介绍了主观听力测试中气导听阈、骨导听阈、掩盖、双耳交替响度平衡试验、短增量敏感度指数试验的测试原理,运作过程以及完成上述功能测试的仪器-电子听力计。
Base on linear treatment of the enthalpy of saturation air, the formulas of temperature distribution? value of heat conduction and efficency for evaporator fins of air-cooling heat pump are deduced under frosting conditions. 在对饱和空气焓作了线性处理的基础上,推导出风冷热泵蒸发器结霜工况翅片温度分布、传热量及翅片效率的公式。
The two groups were comparable in the air conduction ( AC) and air bone gap ( ABG) values, and had no difference statistically. 二组的年龄、术前气导(AC)和术前气骨导差(ABG)相似,统计分析差异无显著意义。
Convection transfer is conducted between air and the media surface and heat transfer inside of the media is still conduction. 在放热阶段,空气与蓄热介质表面进行对流换热,蓄热介质内部的换热仍为导热。
In consideration of the heat radiation of environment ( sun, sky, sea surface or ground, and so on), convection between the air and the boat, and conduction, the stable heat transfer equations of a boat are derived. 在考虑到外界环境(太阳、天空、海面等)热辐射、空气对流换热和船体模型各部分之间传导及辐射等传热效应的基础上,建立了稳态热交换方程组。
Discussion about the efficacy of air layer in clothing from heat conduction model 从导热模型谈服装中空气层的功效
AB gap closure not enough 10 dB and air conduction over 40 dB as no effect was 6% ( 7 ears). 气骨导差减小少于10dB,气导听阈大于40dB的无效者为7耳(6%)。
Plate-air convection, heat radiation to the air and the heat conduction within the plate were considered during air-cooling. 在空冷阶段,主要考虑钢板与空气的对流,钢板的辐射以及钢板内部的热传导。
The higher the material temperature and the greater the flow rate of air, the greater the heat transfer coefficients. ( 2) Gap conduction can be regarded as the comprehensive effect of the multilayer material conduction and heat radiation. 板料温度越高,空气流动速度越大,换热系数越大。(2)间隙传导可视为多层材料传导和热辐射的综合作用。
SND is a more common disease. The clinical characteristics of the basic air conduction ( AC), bone conduction ( BC) hearing at the same time decreased. 感音神经性耳聋是一类较为常见的疾病,其临床特征基本为气导(AC)、骨导(BC)听力同时下降。