This paper presents an experimental investigation of refrigeration system dynamics during the reverse-cycle defrost of an air-source heat pump chiller.
本文针对风冷热泵冷热水机组的逆循环除霜进行了实验研究，得到了除霜时系统参数随时间的变化规律。
The enterprise has to face the reverse logistics business when its responsibility extending to the whole products life cycle with the marketing development.
逆向物流是在市场逐步成熟，企业责任扩大到整个产品生命周期时，企业不得不面对的一个问题。
Designing the die by reverse solution is an important means to speed up the development cycle of die, to increase the product quality and moreover, to establish our own design and manufacture system.
利用反求方法的设计是缩短模具开发周期、提高产品质量及建立自主设计制造体系的重要手段。
The reverse time of the crest motion depends on the smallest zenith Angle and on solar cycle.
运动的反向时间随太阳的最小天顶角的大小而变化，随太阳活动而变化。
The cooling system of reverse bootstrap air cycle driven by powered turbine can be used for cooling the avionics pods.
通过比较指出：动力涡轮驱动的逆升压式空气循环制冷系统是适用于电子设备吊舱冷却的有效方案之一。
But when the dollar goes up, the cycle goes into reverse, as corporate borrowers outside America scramble to pay down their dollar debts.
但是，当美元上涨时，由于美国之外的企业举债者急于偿还美元债务，信贷周期反转。
Based on supply chain operational reference model, by adding the reverse manufacturing process and logistics information process, a cycle logistics chain operation reference model was established.
在供应链运作参考模型的基础上，通过增加逆向制造流程和物流信息流程，建立了一种循环物流链运作参考模型。
It could greatly shorten design cycle and enhance productivity by applying reverse technology.
通过逆向设计可以大量地缩短设计周期，提高生产率。
In this paper, the exergy analysis of the positive and reverse balances on micro-turbine(MT) regenerative cycle is made and the mathematical models of the identity between two balances are deduced.
对采用回热循环的微型燃气轮机进行了正、反平衡效率分析，推导了正、反平衡效率一致性的数学模型。
This article introduces the restructuring technology of the external surface model for auto instrument panel by using reverse engineering, it can greatly reduce the development cycle time.
文章讨论利用逆向工程技术进行汽车仪表板外表面模型的重构技术，能大大缩短产品开发周期。
The results showed that the temperature, average current density, frequency, reverse pulse coefficient and duty cycle had great impact on the microstructure of coatings.
结果表明，温度、平均电流密度、频率、逆向脉冲系数及占空比对镀层性能和微观形貌有较大影响。
On the basis of theoretical and experimental study of the Reverse-Brayton Cycle with binary natural refrigerants, this study was put forward.
在二元天然工质应用于逆向布莱顿循环的理论与实验研究基础上，提出了本课题。
On the basis of theoretical and experimental study of the Reverse-Brayton Cycle with binary natural refrigerants, this study was put forward.
在二元天然工质应用于逆向布莱顿循环的理论与实验研究基础上，提出了本课题。
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