查询词典 refrigerants

Currently,made up of 8 companies and 3 R %26amp; D institutes, Dongyue group has formed powerful industry fundaments and R %26amp; D platform and created hi-tech industrial chain and product group from fluorspar mining to AHF the base material of fluorchemical industry, from chloride methane to environment friendly protection refrigerants, and to fluoropolymer and post-treated products, up to top tech product HFP, VDF, TFE,PFSA and ion membrane etc.

集团拥有8个企业和三个科研机构，形成了强大的产业基础和研发平台，建成了从氟矿石开采到氟化工基础材料无水氟化氢，从甲烷氯化物到绿色环保制冷剂，再到含氟高分子材料及其深加工，以至到尖端技术六氟丙烯、偏氟乙烯、全氟乙烯、全氟离子交换树脂及离子膜等组成的高新技术产业链和产业群。

Methods to accomplish this have been demonstrated using compressed air, as well as refrigerants like Freon.

完成压缩空气的论证，以及用像氟利昂这种的制冷剂。

Substituting propane for common Freon refrigerants has a good future for protecting environment and saving energy.

摘 要 使用R290替代现有的氟利昂制冷剂，对保护环境、节约能源有着很好的应用前景。

The results of the research are of significance in selection of refrigerants and capacity control for heat pump system.

这些研究结果对于各种容量的热泵装置的工质选择和调节都有指导意义。

The influence of excess anhydrous hydrogen fluoride, the amount of oleum and its trickling rate, the time and temperature of heating hexafluorophosphoric acid, and refrigerants on the yield and the content of phosphorus pentafluoride was studied.

在此过程中，本文研究了无水氟化氢过量百分率、发烟硫酸用量及滴加速度、六氟磷酸的加热时间、加热温度以及冷凝介质等因素对五氟化磷产率和纯度的影响。

The molecular parameters for 18 refrigerants were obtained by fitting saturated vapor pressure and liquid molar volume data. The overall average deviations of saturated vapor pressure and liquid molar volume were only 1.11% and 0.92%, respectively.

通过关联不同温度下制冷剂的饱和蒸气压和液体体积得到了18种纯制冷剂的分子参数，新方程计算的饱和蒸气压和液体体积总的平均偏差分别为1.11％和0.92％。

Finally, suitable correlation of flow boiling with pure refrigerants in horizontal tubes, condensation heat exchange factor of steam containing non condensable gases and air-side thermal performance of condenser are selected by means of programming calculation.

最后用自编的专用程序计算、拟合了双相变换热器的水平光管内沸腾和汽侧冷凝的换热关联式。

Due to the physical properties exhibit extremely rapid variations with the change of temperature near the pseudocritical point, the heat transfer performance of supercritical fluids are very different from that of conventional refrigerants.

二氧化碳跨临界循环放热过程处于超临界区，由于在准临界点附近CO2 的热物理参数变化非常剧烈，超临界区流体的换热有别于传统制冷剂，气体冷却器的换热优劣对系统性能影响较大。

Performs system retrofits for new refrigerants as needed.

如有必要需对原制冷系统进行硬件改造。

In the study of the new kinds of refrigerants, mixtures are also very important.

在新型制冷剂开发过程中，混合制冷剂也是重要的一方面。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。