空气温度

In order to study the geometry effect on the performance of the louvered fin heat exchanger, a two dimensional numerical model is established for air side heat transfer and fluid flow characteristics for a type of louvered fin surface and the related numerical simulation is conducted.

heat transfer and flow characteristics ； numerical simulation ；为研究百叶窗翅片几何结构对换热器性能的影响，采用二维计算模型，对空气流经一种类型的百叶窗翅片的传热和流动特性进行了数值模拟，获得了百叶窗翅片的温度场、速度场和流线图。

The results indicated isoprene was soon consumed under the condition of excess ozone. During the reaction, the major carbonyl products formed were methyl vinyl ketone, methacrolein, methylglyoxal, and formaldehyde. Formic acid, CO and CO2 were also among the products.

在反应温度(294±2)K，压力为1.01×10^5Pa空气，O3过量的条件下，异戊二烯很快反应完全，反应中生成的羰基产物主要包括甲基丙烯醛、甲基乙烯基酮、丙酮醛和甲醛；产物中还包括甲酸、一氧化碳和二氧化碳。

By changing the fluid temperature and flow rate on the refrigerant/air side, the frost formation process on flat fin surface of an outdoor heat exchanger was traced dynamically using a microphotographic camera.

通过改变蒸发器制冷剂侧和空气侧的流体温度、流量等参数，利用显微摄影机对室外侧换热器的平直翅片表面结霜过程进行动态跟踪。

The winter sea level has "the heat source", the sea water temperature relative interior's surface temperature must be high, therefore above the sea level air is relatively warm moistly, the water vapor is full.

冬季海面存在着&热源&，海水水温相对内陆的地表温度要高，所以海面上方的空气相对温暖湿润，水汽充分。

The preparation of the membrane is that the phthalazine polyether-sulfone-ketone polymer is mixed with chloroform, Ethanol or butanol according to certain quality proportion; after the magnetic stirring, the evenly mixed casting solution is obtained, filtered and carried out with vacuum deaeration; The casting solution is scraped into membrane of certain thickness on the non-woven fabric by adopting the scraper; the membrane is standed for 24 hours in the air of certain humidity and temperature to obtain the plate ultrafiltration membrane of phthalazine polyether-sulfone-ketone.

本发明公开了属于高分子膜分离技术领域的一种二氮杂萘聚醚砜酮类聚合物平板超滤膜的制备方法，所述膜的制备方法为：用二氮杂萘聚醚砜酮类聚合物与氯仿、无水乙醇或正丁醇按照一定的质量比混合，磁力搅拌后得到混合均匀的铸膜液，过滤并真空脱泡；将铸膜液采用刮刀在无纺布上刮制成一定厚度的膜，该膜在一定湿度和温度的空气中静置24h后即得到二氮杂萘聚醚砜酮类平板超滤膜。

The results show that the thermal decomposition temperature of phthalic acid in SiO2 xerogels is 100℃ higher than that in air due to the protection by SiO2 xerogels.

指出邻苯二甲酸由于受到SiO2凝胶的保护，其热分解温度比在空气中提高了近100℃。

In this study, based on the Rnl, extinction coefficient k, transition coefficient of canopy layer stomatic resistance K', aerodynamics resistance ra and rc calculated with the data of Rn, LAI, rsi, the daily transpiration variation of Picea purpurea, Larix principisrupprechtii, Hippophae rhamnoides ,Betula platyphylla and Populus cathayana were studied in Datong County, Qinghai Province. Comparing with the practical transpiration variation measured by Li1600 Steady Porometer, the relative error of this model was less than ±15%, and the results were stabilized and tested by precision analysis.

本研究通过对Rn、LAI、rsi的实地观测，确定了林冠截流净辐射、消光系数、冠层阻力转换系数、空气动力学阻力和冠层整体气孔阻力，对青海大通地区紫果云杉、华北落叶松、沙棘、白桦和青杨的日蒸腾过程进行了模拟，与用快速称重法订正的Li1600稳态气孔仪实测蒸腾结果对比，模拟的相对误差在±15%以内；模型敏感性分析发现，温度、LAI以及rsi是决定模拟结果的主要参数，模型对各参数变化反应不敏感。

In this study we quantitatively evaluated, by a stable paralysis/stableinfusion rate method, the difference between two standardizedparalysis levels—train-of-four count of 2 responsesand posttetanic count of 2. Ten ASA physical status I–IIconsenting adult patients scheduled for elective surgery wereanesthetized (sufentanil/propofol), tracheally intubated, mechanicallynormoventilated with a fixed O2/air mixture, and normothermic;oropharynx and thenar temperatures were maintained above 36°and 32.5°C, respectively.

在本研究中我们用稳定肌松/稳定输注速度方法定量地评价了两个标准化肌松水平――四个成串刺激计数为2个反应与强直后计数为2――之间的差异。10例 ASA 分级 I–II 预定行择期手术的已获取同意的成年患者行麻醉、气管插管、用混合 O2/空气正常机械通气，且保持正常体温；口咽和鱼际温度分别维持在36°和32.5°C 以上。

Wet bulb temperature ; enthalpy ; saturated air ; atmospheric pressure ; psychrometric chart

湿球温度；焓；湿饱和空气；大气压；焓湿图

Keywords Pyrology; Low temperature heat pump; Nominal heating condition; Standard

上述结论可为商用和户用低环境温度空气源热泵机组的标准制定提供参考。

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％。