英语翻译The principle of operation of refrigeration machines is

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英语翻译
The principle of operation of refrigeration machines is based on the second law of thermodynamics.A certain amount of work has to be done to transfer heat from a cold body to a hot body.
The second law of thermodynamics is mathematically expressed as
Qk =Q0+L,J;
(Qk = Q0+AL,kcal),
Where Qk is the quantity of heat transferred to the hot body;
Q0is the quantity of heat given out by the cold body;
L is the work done to transfer the heat;
A=1/427 is the heat equivalent of work.
Machines that gather heat from a cold body and give it to a hot body are called refrigeration machines.Heat is transferred form a body at a lower temperature to a body at a higher temperature by a working substance (fluid) circulating in the refrigeration machine..............

制冷的机器的工作原理是基于热力学第二定律.一定数量的工作必须被做,以传递热量从冰冷的身体去一个热的物体.
热力学第二定律是数学上表示为
+ L,Qk = Q0 J;
(= Q0 +艾尔,Qk千卡),
哪里是Qk的热量转移到热的物体;
热量的Q0is发出寒冷的身体;
我是做的工作转移到热;
一个= 1/427是高温等效的工作.
机器,聚集热量从冰冷的身体,并把它交给一个热的物体被称为制冷的机器.构成了人体的热转移以较低的温度于一体的在更高的温度下由工作物质(流体)循环制冷机.

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