求翻译：热力学第二定律：高温物体的热能可以自动传递给低温物体，而低温物体的热能却不能自动地传递给高温物体。机械能可以自动转化为热能，而热能却不能自动转化为机械能。是什么意思？

The second law of thermodynamics: high-temperature thermal energy of an object can be automatically passed to the low-temperature objects, while the low-temperature thermal energy of the object can not be automatically passed to the hot object. Mechanical energy can be automatically converted into h

Metcalfe's Law: The first 2 thermodynamic temperature of the object can be automatically passed to heat cold objects, and low-temperature geothermal energy of the object is not automatically passed on to hot objects. Mechanical energy can be automatically converted into thermal energy, and geotherma

Second law of thermodynamics: The high temperature object heat energy may transmit automatically for the low temperature object, but the low temperature object heat energy cannot transmit automatically actually for the high temperature object.The mechanical energy may transfer automatically changes

The second law of thermodynamics: heat high temperature objects can be automatically passed to the cooler body, and low-temperature heat cannot be automatically passed to the high temperature of the object object. Mechanical energy can be automatically converted to heat, but the heat does not automa

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