预冷

浅层岩壁预冷入风流热湿交换机理的研究

Study of Heat and Moisture Exchange Mechanism Using Shallow Palisades to Precool Intake Air

果蔬类食品真空预冷装置

Vacuum precool for fruit-and vegetable-based food

Air（初三适用）果蔬差压预冷设备及预冷技术研究

Application and design of forced - air precooling equipment and techology for fruits and vegetables

PLC在真空预冷实验装置中的应用

The application of PLC in the vacuum precooling test device

预冷温度及时间对Endurance骨水泥生物力学特性的影响

Influence of storage temperature and time on endurance bone cement properties

LNG船MOSS型球形液舱预冷温度的计算和分析

On the Pre-cooling Temperature of Spherical Cargo Tank for MOSS Type LNG Carrier

然而对LNG船舶液货操作的研究，尤其是液货舱预冷工艺的研究鲜见报道。

Yet the study of liquefied cargo operation , particularly pre-cooling process has been rarely reported .

CO2-C3H8复叠低温预冷系统的理论分析及优化设计

Theoretical analysis and optimization of a CO_2-C_3H_8 cascade precooling system for cryogenic applications

冷水浸种48h；真空预冷装置的研究

Soaked in cold water for 48 hours ; A STUDY ON VACUUM PRECOOLING EQUIPMENT

气候条件，采前技术措施，采收技术，采后预冷和贮藏温度、湿度对贮藏中葡萄SO2伤害都有一定的影响。

There are some effecting of weather condition , preharvest technology , precooling , temperature and RH during storage .

样品以80%酸化预冷甲醇提取，使用碱裂解法分析检测ABA结合态。

Samples were extracted with the 80 % precooling and acidified methanol and conjugated abscisic acid in extracts were treated by alkaline lysis method .

研究了预冷变形对Al-Li-Cu-Mg-Zr合金显微组织和力学性能的影响。

The effect of cold pre-deformation on Al-Li-Cu-Mg-Zr alloy 's microstructure and mechanical property has been studied .

结果表明，最佳形变热处理工艺为980℃固溶1h，冰盐水淬火，40%预冷变形之后480℃时效4h。

The results show that the optimum processing is that solution at 980 for 1 h , ice salt water quenching , 40 % pre-cold rolling then aged at 480 for 4 h.

预冷变形对Al-Li-Cu-Mg-Zr合金性能的影响

The Effect of Cold Pre - deformation on the Properties of Al - Li - Cu - Mg - Zr Alloy

预冷系统和制冷循环的制冷剂分别为R404A和R740。

The refrigerants of pre-cooling cycle and refrigeration cycle were R404A and R740 .

微型保鲜库预冷气流组织的仿真分析利用CFD技术对一实际大型水果冷藏库流场进行了数值模拟，并通过实验验证了模拟的可靠性。

Simulation Analysis of Flow Field of Chilling Process in a Mini Type Cool Store CFD was used to simulate and analyze an actual big fruit cold store , and the reliability of the simulation was certificated with the experiments .

对牛卵泡卵母细胞体外受精（IVF）168h的致密桑椹胚、囊胚用常规快速冷冻法、预冷和不预冷的超快速冷冻法进行了冷冻保存试验。

Bovine follicular oocyte IVF 168 h compact morula and blastocyst were frozen by using methods of conventional rapid freezing , ultra rapid freezing of prefreezing and non prefreezing .

笔者给出了LNG船MOSS型球形液舱预冷温度的一种计算方法，并对某些典型液舱进行计算，对液舱温度变化规律进行分析。

This paper puts forward one calculation method for the pre-cooling temperature of spherical cargo tank for MOSS type LNG carrier . Calculation for a typical cargo tank is carried out and the temperature distribution during the pre & cooling is analysed .

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。

Introduces the construction and main performance of VAC-0.2 experimental setup for vacuum precooling , and discusses its data acquisition processing system in detail .

结果表明，以贮前50℃预热处理30min和5℃预冷处理30min的果实腐烂率最低；

The results showed that the decay rates of fruits with pre-heating treatment at 50 ℃ for 30 min and with pre-cooling treatment at 5 ℃ for 30 min were the lowest compared with the control .

室温贮藏条件下，与其它预冷处理相比，以5℃预冷处理30min的果实腐烂率最低，保鲜效果最好。

The decay rate of fruit with pre-cool treatment under 5 ℃ for 30 min was lower than the control fruit storied at room temperature . The pre-heat treatment had a better fresh preservation effect than the pre-cool treatment .

调质处理新工艺（预冷淬火工艺650℃×1h预热，860℃/48min→530℃/48min油冷，620℃回火2.5h），可以在保证工件常规力学性能的前提下，减小热处理变形。

The new quenching-temper process ( the precooling quenching process is 650 ℃ / lh preheat , 860 ℃ / 48min & 530 ℃ / 30min oil cooling , 620 ℃ / 2 . 5h temper ) can ensure ordinary mechanical properities , reduce heat-treatment distortion .

为了满足液氦温区分离型二级脉管制冷机第二级预冷的需要，设计制作了1台20～40K温区单级大功率脉管制冷机。

A single-stage and high power pulse tube cooler working between 20 ~ 40 K has been designed and constructed in order to precool the second stage of a 4 K separate two-stage pulse tube cooler .

对于该试验采用的葡萄包装箱，综合考虑预冷速度、冷却均匀性以及预冷后葡萄的温升速度、干耗等因素，开孔直径在28mm左右、压差保持在100Pa左右为宜。

It is reasonable for the grape ( carton ) provided in this experiment to choose the vent hole diameter about 28 mm and the pressure drop about 100 Pa , considering the pre-cooling experiment results and other factors .

青花菜差压预冷流通保鲜技术的研究

The Study of Forced-Air Cooling and Keeping Freshness Technique of Broccoli

真空预冷终温对草莓短期保鲜贮藏的影响

Effect of Vacuum Precooling End-temperature on Short-term Fresh Preservation of Strawberry

几种蔬菜真空预冷的对比实验研究

Comparative Experimental Study on Vacuum Pre - cooling for Several Vegetables

绿芦笋压差预冷和冷藏试验研究

Experimental study on Pressure Pre-cooling and Cold Storing of Green Asparagus

草莓差压通风预冷过程中影响参数的研究

Study of parameters affecting cooling rate in forced-air precooling of strawberry

花卉真空预冷保鲜技术探讨

Inquiry of vacuum precooling technology for keeping flowers and plants fresh