空气温度

Some scientists believe absorption of solar radiation by aerosols (dust particles and carbon soots) can heat the atmosphere and accelerate regional impacts of global warming, which in turn affect water resources.

一些科学家认为，空气中的悬浮颗粒吸收太阳辐射后会加热大气温度，加速部分地区温室效应，从而影响水资源。

The mo to r insulation systems shall have a thermal classification of Class F in accordance with the requirements of SABS IEC 60085 and be suitable for operating at any altitude up to 1650 metres above sea level with an ambient air temperature of 40C.

莫到R绝缘系统应具有热的分类， F级，在按照要求sabs的IEC 60085和适合的作业在任何高度达1650米，海平面以上与周围空气的温度40C条。

Applications Construction of industrial commercial or residential air handling operations Suitable for operating temperatures up to 120°C with maximum air velocity of 10 m/s and static pressure of 50 mm water gauge Benefits Non-combustible (Tested to SABS 0177 Part V) Class I fire index (Tested to SABS 0177 Part III) Integrated system Reduces manufacturing, material and insulation costsroduct can be tailor-made to suit the application Can be used in conjunction with metal and flexible ductwork Modifications can be fabricated on site Can be pre-grooved or grooved on site Low thermal conductivity Non corrosive Excellent sound reduction Controls condensation

应用 工业商业或住宅建筑空气处理操作适用于工作温度与10米，最高风速可达120℃/ s和50毫米水表静压优点不可燃（经测试可SABS规格0177第五部分） I类火灾指数（经测试可SABS规格0177第三部分）集成系统降低制造，材料和绝缘costsroduct可以度身订造，以满足特定的应用可用于金属管道和灵活的结合修改可以在现场制造可以预先槽槽或网站导热系数低非腐蚀性出色的声音还原控制凝结

According to the experimental results, both the conducting area and material of current collector slices have great influence on the performance of micro PEMFC, especially the former one. The increment of cell's performance is finite by increasing the gas reheats temperature. The performance is better for open ratio 75% compared with 50% and 67%. The concentration polarization is improved by increasing the air flow rate at high current density and if the GDL diffusive capability in the latter cell could be promoted, the differences between these two cells' performances would be reduced.

由实验结果可知，集电片的导电面积与材料对於电池性能有显著的影响，尤其是前者；对於增加反应气体的再热温度，微型燃料电池增加的性能有限；双极板开孔率75%相较於开孔率为50%与67%有最佳的性能曲线；增加阴极气体空气的流量，可以改善高电流情况下的浓度极化现象，所以若我们能增加气体扩散层的扩散能力，则可以减少两者的性能差距。

After the typical working characteristics of STIG cycle being illustrated, the performances of the air cooled STIG and ISTIG cycles are investigated, including the influence on the steam injection rate exerted by the recovery boiler's working limitation of pinch point temperature difference, the minium superheat temperature and the minium exit temperature.

分析STIG循环的典型工作特点，讨论采用空气冷却方式的STIG及ISTIG（采用中冷技术的STIG）循环的工作性能，尤其是余热锅炉节点温差、最低过热度、最低出口温度等限制因素对蒸汽喷注量的制约影响。

On the basis of analyzing the thermodynamic properties and cycle performance of pure refrigerants, the paper optimizes their concentration while screening NARMs used in wide variable-temperature heat source. The practical applications of NARMs, such as R22/R123, R123/R125 etc., are studied in geothermal heat pump, seawater heat pump, air dehumidification system and dual-evaporator domestic refrigerator. The results show that the NARMs can match the limitation of a pinch point at the air-side exit of heat exchanger, reduce the unreasonable heat transfer temperature difference, and improve the COP of system. The above conclusion is proved by measuring the cycle performance of R12, MP39 and R11/R22 in a two-evaporator experimental system.

其次，本文在工质热物性和变工况循环性能分析基础上，筛选和优化了适应外部大变温热源约束条件的非共沸混合工质及其浓度配比；讨论了相变温差较大的非共沸混合工质（如R22/R123、R123/R125等）在地热源供热热泵、海水源供热热泵、双门冰箱和热泵空气除湿的应用，计算分析表明制冷与热泵系统采用相变温差较大的非共沸混合工质有利于弱化传热过程的&窄点&的约束，减小传热过程中的不合理温差，提高系统COP值；通过建立双蒸发温度循环系统试验装置，对R12、R22/R11和R22/R152a/R124循环性能进行实验研究，结果与理论分析一致。

The effect of permeability of press plate on the magnetic and temperature in the end region is also researched in the paper.

本文应用有限元方法研究了QFSN-600-2型汽轮发电机氢气、空气状态下的端部磁场和结构件温度分布。

These polyamides showed glass-transition temperatures between 222~288 oC and softening temperature between 222~279 oC.

在氮气及空气中重量损失达5 %的热分解温度皆在400 oC以上，显示具有良好的热安定性。

But the woodceramics would be oxidated and released CO and CO_2 under a definite temperature in air atmosphere.

但在空气中达到一定的温度，木陶瓷会发生氧化反应，释放出CO和CO_2气体。

In the model, the total heat transfer coefficient, evaporation temperature and pressure loss of evaporator are measured, the pressure head of fan is from instruction book, the physical property parameters of shelves and insulated layers are assigned by themselves, the air of display case is still simulated by traditional K-ε model.

其中，蒸发器的总换热系数、蒸发温度和压力损失按实测处理；风机的压头按样本确定；搁架和保温层的物性参数按实际数值赋值；拒内空气部分仍按传统的K-ε模型模拟。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。