查询词典 air temperature

The oxidant 〓 plays indirect role in dissolving gold, and mainly controls the mix potential of Au in the alkaline thiourea solution. In which the "mix potential"is the decisive factor affecting the dissolution of gold. The reaction driving force is enough to have formamidine disulfide oxidize Au to Au〓 at the potential of about 0.4V. And then thiourea molecular complexes with Au〓 ion soon, which causes the fast dissolution of gold in the alkaline thiourea media. The dissolved weight of gold in 0.25 M thiourea solution with 0.05M Na〓SO〓 and 0.1M 〓 of pH 12. 5 by air at the temperature of 303K is 7. 8mg·cm〓 within 1hr.

在碱性硫脲溶金过程不起直接作用，而是通过S〓O〓来控制二硫甲脒有效形成的金在溶液中的混合电位；&混合电位&是影响碱性硫脲溶液溶金与否的决定性因素，在0.4V左右，有足够的推动力致使二硫甲脒氧化Au成Au〓，随后硫脲与Au〓络合形成稳定的络离子Au〓，从而使金快速溶解；温度为303K、pH为12.5时，在含0.05MNa〓SO〓、0.1M 〓及0.25M硫脲的溶液中，鼓入空气，金的溶解量在1hr内为7.8mg·cm〓；铜只有微量溶解，银、镍、铁则几乎不溶解。

Surface heating provides temperature maintenance for vicious products and condensation control for hydroscopic granular or air-borne media.

表面加热系统可以维持容器温度，从而防止内部液体或气体介质凝固。

Based on the heat and moisture transfer through porous media, a 1-D transient hygrothermal model for multilayer wall were established by using air humidity ratio and temperature as driving potentials.

以多孔介质传热传质学为基础，以墙体内的空气含湿率和温度为驱动势建立了多层墙体中的一维瞬态热湿耦合传递方程。

Based on the analysis of kinetical process of CH4 -air oxidation, a numerical modeling of the species concentrations and temperature for CH4 jet diffusion combustion is made using a four-step reduced mechanism and two semi-detailed chemical kinetical reaction mechanismsW mechanism and Y mechansim.

在分析甲烷-空气氧化反应动力学过程的基础上，采用四步简化机理和两种半详细的化学反应动力学机理-W机理和Y机理，对甲烷射流扩散燃烧的组分浓度和温度进行了数值模拟，计算结果与实验结果进行了对比分析。

From the metallograph, the grain size of the room-temperature water-cooling clasps was known to be smaller than that of the air-cooling clasps.

Ti75作为首次引入的卡环制作的新型钛合金，表现出良好的抗疲劳性能，是一种合适的牙科铸造合金。

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 air and the deionized water were considered as standard examples and the densities of diethylene glycol monobutyl ether were measured over a temperature rang of 20 ℃ to 60 ℃ with an Anton Paar DMA60 DMA602 vibrating tube densimeter.

以空气和去离子水为标准样，利用Anton Paar DMA60 DMA602振动管密度计测定了常压下二乙二醇丁醚在20—60℃间几乎每相间1℃密度数据。

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℃。

The study showed that installing a precombustion chamber could help improve complete combustion of the burner.The terfiary air near the chamber wall could lower the temperature of the chamber inner wall.The study results provided the theoretical basis for optimum design of burner structure.

研究认为燃烧器设置预燃室有利于提高燃烧器的完全燃烧度，紧靠燃烧室壁面的三次风有利于降低燃烧室内壁温度，研究结果为燃烧器结构的优化设计提供了理论依据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。