定律 的中文句子和英文句子

开普勒，约翰尼斯1571－1630德国天文学家和数学家，被认为是现代天文学的奠基人，他创立了三大定律，说明行星围绕太阳转的理论

German astronomer and mathematician. Considered the founder of modern astronomy, he formulated three laws to clarify the theory that the planets revolve around the sun.


很明显，冷冻机是一种物理系统，因此它不仅必须遵从第一定律（能量定恒），也必须遵从热力学的第二定律。

Clearly, a refrigerator, which is a physical system must obey not only the first law(energy conservation) but the second law of thermodynamics as well.