查询词典 air temperature

Cooling air flow through the low-temperature part then effuse from the high-temperature part. This can enchance the efficiency of radiation and reduce radiators of each locomotive.Furthermore, it syffice for use of diesel engine and reduce needed assistant power to cool fans.

冷却空气从进风面进入前部低温冷却芯子，后再经高温冷却芯子，从而提高了散热器效率，减少了装车散热器单节数，同时满足了柴油机高低温系统的散热要求，又可降低冷却风扇所需的辅助功率。

The vapour and plasma ignition times of the target are got based on the equation of heat conduction and cascade model. We suppose that the plasma is ignited when 210 generations of new electrons are born in vapour generation time. The influence of temperature on the thermodynamics and optics parameters of material also have been considered in the model. The resulting theory has good agreement with the experiment and overseas report. A blade method to measure the laser spot is given in this paper with validation and error analysis. The plasma threshold of metals in atmosphere and water ambients both are diagnosed with the light deflection and piezoelectric transducer. A Q-switched pulsed Nd:YAG laser operating at infrared (1064nm), visible(532nm) and ultraviolet (355nm) wavelengths has been used. Al、Fe、Cu are used as targets and get a similar results with both method. Theoretical and experimental analyses are applied on the influence of wavelength on the threshold have been done, both of which have shown that the plasma threshold of metals decrease as the laser wavelength increases; The plasma threshold of metals are higher in water than in air and the pressure of the shock wave in water is five times higher than in air.

从热传导方程和雪崩电离机制出发，假设当电子增值2~(10)倍时，考虑了温度对材料热力学和光学参数的影响时，得到了气化和等离子体点燃的时间，利用该模型进行计算得到的结果与国内外报道及自行通过实验测得的阈值基本一致；提出了利用刀刃法测量激光光斑面积的方法，并通过实验进行了验证和误差分析；利用光偏转装置和压电换能器分别对空气和水中金属等离子体点燃阈值进行了实验诊断，激光器均为调Q—YAG激光器(波长1064nm，532nm，355nm，脉宽10ns)，靶材分别为Al、Fe和Cu，两种测试方法得到的等离子体点燃阈值基本一致；本文从实验和理论计算两个方面讨论了波长对等离子体点燃阈值的影响，均得到了等离子体点燃阈值随着波长的增加而减小的结论；对空气中和水中不同环境下金属等离子体的点燃阈值进行了比较研究，得到了金属在水中的等离子体点燃阈值比空气中的大，且水中产生的冲击波的压强是空气中的5倍左右的结论。

Main factors that caused the low heat efficiency and high energy consumption were inadequate atomizing of heavy oil, low combustion air preheating temperature, high exhaust fume temperature and low insulating perfomance of furnace wall.

造成加热效率低、能耗高的主要原因有：重油雾化不充分，助燃空气预热温度低、排烟温度高、炉墙保温性能下降等。

A combustion simulation adopting the Reynolds stress model and the Laminar Flamelet model was performed to determine the effect of humidity in the combustion air on temperature, velocity and NO distributions of methane/air diffusion combustion in a swirl combustor.

采用湍流雷诺应力微分模型和层流小火焰模型，对湿空气透平带旋流器的燃烧室内甲烷扩散燃烧过进行了数值模拟。

Used turbulent flows model,methane/air half-particular chemistry mechanism and laminar flamelet model couple to calculate,and work out that excessive air coefficient is 1.2 and 1.4,where velocity in firebox and mixture,temperature and component in radial.The result indicated...

利用湍流流动模型、甲烷/空气半详细化学反应机理和小火焰模型耦合求解，分别计算出过量空气系数为1.2和1.4的速度在燃烧室内的分布状况以及混合分数、温度和组分的径向分布，模拟结果表明小火焰模型能够用来描述燃烧室内燃烧机理。

Compared with the significant variation of temperature of free air and of surface soil, soil temperature at different depths varies in the range.

文章进一步揭示了林地植被平抑这种动态效应，而裸地则响应于温度变化；这种不同植被系统下的动态差异在解释岩溶沉积记录和讨论岩溶作用与碳循环的关系时值得充分注意。

Numerical tests are also conducted to investigate the microphysical effects to the mesocale convective systems. The evaporation of raindrops can strengthen the surface "cold pool" to decease the temperature of rainfall center. The condensation of vapor can lower the air pressure and increase the convergence and updraft so that the convective echo develops stronger. The melting of graupel can cool the air to restrain the convective activity. The falling of precipitation particles can increase the downdraft and induce the outflow nearly the surface. The effect of condensation is the most important among all the microphysical processes. It can change the whole structure of cloud system.

微物理过程对对流系统发展和维持有重要作用：强降水的雨滴蒸发过程会加强"冷池"效应，同时增强了雨带南侧原有的地面中尺度辐合线；凝结潜热在低层诱发了与回波相应尺度的中尺度低压，增强了辐合和上升运动，促进对流发展；霰的融化吸热通过冷却大气会不利于气压下降、气流辐合抬升等过程，降低对流不稳定能量，减缓对流发展；重力拖曳使气块冷却降温，降低对流不稳定能量，并且使低层的气压升高、气流辐散，在近地面附近产生出流，加强地面中尺度辐合线的强度。

The temperature increase and heat gain of the duct in normal system and low temperature air supply system are calculated.

探讨了由于较低的送风温度使送风系统在风管温升、风管得热等方面发生的变化，并用公式计算了常规系统和低温送风系统的风管温升和风管得热。

The bane argues to know data Endanger an effect healthily:NONE The environment influence:NONE The physics and chemistry bane:NONE Special bane:The AZO-FREE passes the ICP method analysis test to have no related of lead over 100 ppms, Ge over 5 ppms 9.5 a fires and the explosion danger The order:Obsolescent Combustible extreme limit(the air lie quality:Vol%):non-combustible product Apply to extinguish fire:The water,water sprays fog,carbon dioxide,the stem powder to extinguish fire a ,foam to extinguish fire The special sex protection equipments of the fire fighter:Need to go together with to take the goggle and anti-virus mask Very the rules a fire and the explosion danger:When the temperature hoick, the product meeting because of hot bulge cold but cause to open 9.6 Respond sex Stability:Under the normal regulations condition stability Environment should avert from:The water immerse,affect by damp and cold,clear fire perhaps the temperature is high in 500 ℃s Incompatibility:Have no Dangerous of decline a solution an outcome:Have no Dangerous polymer reaction:Will not take place 9.7 health dangers Dangerous way:Inhale, take, the skin and eyes get in touch with solid perhaps dust-The physics contact may result in allergic sex respond.

危害辩识资料健康危害效应：NONE 环境影响：NONE 物理性及化学性危害：NONE 特殊危害：AZO-FREE 通过ICP方法分析测试无相关之铅超过100ppm，镉超过5ppm 9.5火灾和爆炸危险闪点：不适用可燃极限：不燃物品适用灭火剂：水、水喷雾、二氧化碳、干粉灭火剂、泡沫灭火剂消防人员之特别性防护设备：需配带护目镜和防毒面具非常规火灾和爆炸危险：当温度急剧上升时，产品会由于热胀冷缩而导致开裂 9.6 反应性稳定性：在常规条件下稳定应避开的环境：水浸、受潮、明火或者温度高于500℃不相容性：无危险的降解产物：无危险的聚合物反应：不会发生 9.7健康危险危险方式：吸入，摄取，皮肤和眼睛接触固体或者灰尘----物理接触可能造成过敏性反应。

But with increasing temperature,homolysis is enhanced,especially for PPTA.When the temperature reaches 1000℃,PPTA takes higher mass loss than PMIA.In both inert gas and air,mass spectra of volatiles are obtained,and PMIA and PPTA mostly show the same mass signals.

在低降解温度时，采用水解机制解释了PMIA纤维三步的失重过程和较低的耐热性能；而随着温度升高，均裂机制增强，导致PPTA纤维在1000℃时的失重大于PMIA纤维。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。