To two different precooling rate, the differences of the moving of sublimation interface were compared.
针对两种不同的预冷速率，比较了升华界面移动的不同。
Finally the two points needing attention when putting an air precooling system into operation are given.
最后，指出空冷系统使用中需注意的两个方面。
The precooling room and warehouses were not completed until about 8 months after the laboratory was occupied.
预冷室和仓库直到实验室被占用后8个月才完成。
The effects of different insulation, tank pressure and injection situations on the precooling process were investigated.
研究了输送管壁不同绝热条件、贮箱增压及气体引射对自然循环预冷过程的影响。
In point of bio-electron-microscopy ultrastructure, the effect of the specimen precooling on cryofixation quility is also discussed.
最后，定性地研究了预冷对电镜生物样品超微结构的影响。
Test results demonstrated that this system has advantages of high precision and easy to operate to meet well the precooling requirements in vacuum.
试验证明该数据采集处理系统测量精度高，操作方便，充分满足了真空预冷实验要求。
The structure of two cryogenic vessels with high pressure for liquid hydrogen and with a overall cover of a precooling interlayer respectively is introduced.
着重介绍了低温高压液氢容器和全包式预冷夹套低温容器的结构。
Introduces the construction and main performance of VAC-0.2 experimental setup for vacuum precooling, and discusses its data acquisition processing system in detail.
介绍了VAC- 0.2型真空预冷实验机结构及其基本性能。对它的数据采集处理系统进行了详细分析。
The results show that the precooling time of the probe is shortened significantly with the help of the vapor-liquid separator, and decreases with the driven pressure.
结果表明：使用了快速预冷汽液分离器后，探针预冷时间大大缩短，并随驱动压力增大而减小；
In order to save energy, when refrigeration system using water frozen water units + free cooling system, have refrigeration, precooling, free cooling three operating mode.
为了节约能源，当制冷系统采用水冷冷冻水机组+自由冷却系统时，有制冷、预冷、自由冷却三种运行模式。
The air conditioning energy consumption can be decreased by the waste heat of exhaust air recovered preheating or precooling the fresh air drawn in air conditioning system.
通过回收排气中的余热对引入空调系统的新风进行预热或者预冷，可以减少空调系统的能耗。
Analysis focuses on the reason for impurity concentration in closed-cycle nitrogen-water precooling system of air separation unit. The solution to this problem is also presented.
分析了空分设备闭式循环氮水预冷系统杂质浓缩的原因，提出了处理措施。
Cryogenic high-pressure vessel wound by flat metal strip with a liquid nitrogen precooling jacket is a new fashion adiabatic equipment, which consists of inter vessel and outer vessel.
扁平绕带式低温高压容器是一种新型低温液体贮存设备，由内外两层容器组成，内筒体的外壁焊有液氮预冷夹套。
Effect on engine performance of precooling was calculated to analyze the feasibility of the two methods on the assumption that the precooling effectiveness can achieve the anticipated value.
在预冷换热效果能实现设定数值的假设前提下，计算了预冷换热对发动机性能的影响，对两种途径的可行性进行了分析。
The paper describes the different processes relating to air precooling systems and cooling towers of spray type, perforated plate type and packed type with their advantages and deficiencies analyzed.
介绍了空气预冷系统的不同流程以及喷淋式、塔板式、填料式冷却塔，分析了其优缺点；
The paper describes the different processes relating to air precooling systems and cooling towers of spray type, perforated plate type and packed type with their advantages and deficiencies analyzed.
介绍了空气预冷系统的不同流程以及喷淋式、塔板式、填料式冷却塔，分析了其优缺点；
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