查询词典 refrigerants

Reviews the progression of refrigerants, from early uses to the present, and then addresses future directions and candidates.

回顾了制冷剂从早期使用至现在的进步历程，探讨了未来方向与一些候选制冷剂。

Firstly the article briefly introduces the basic principle, the key technology of magnetic refrigeration and the development of magnetic refrigerants.

本文首先就磁致冷的基本原理、磁制冷关键技术、磁致冷材料的发展等问题做了简要的概述。

In order to improve the performance of the moderate and high temperature watersource heat pump system,firstly analyzes the selection principles of the refrigerants.

为了更好地提高中高温水源热泵机组的性能，首先简要分析中高温水源热泵制冷剂的选取原则。

Their very low boiling and melting points make them useful as refrigerants for low-temperature research.

它们的沸点和熔点都非常低，因而可以在低温研究中用作致冷剂。

Our introduction of foreign advanced manufacturing equipment and testing equipment, Completion of the international advanced level of automation lines, professional production of refrigerants empty bottles and packaging of dangerous goods.

本厂引进国外先进的制造设备和检测设备，建成具有国际先进水平的自动化流水线，专业生产各种制冷剂空瓶和危险品包装。

Firstly, according to the relationship between classic Carnot cycle and Lorenz cycle, the paper evaluates the cycle characteristics and thermodynamic properties of NARMS (Non-azeotropic mixtures), and compares the energy-saving difference between pure and mixed refrigerants. The main of factors that affect heat pump operating efficiency are analyzed in theory and using the Second Law of Thermodynamics the exergy are evaluated in components of heat pump system, in the end a conclusion is drew that all of the exergy have bearing on working fluids' properties.

本文首先从经典的Carnot逆循环与Lorenz逆循环相对关系出发，评估了非共沸混合工质循环的特点以及热力学性质；在不同环境条件下，比较了单工质与混合工质的循环特性差异；针对非共沸混合工质热泵循环效率的主要影响因素（即工质本身的热物性和系统部件特性）进行了理论分析，并利用热力学第二定律对热泵系统的各个主要部件进行了可用能分析，最终发现每一处可用能损失均与工质物性有关；在此基础上提出了减少可用能损失的方法—寻找适宜的非共沸混合工质。

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。