Kirchhoff's diffraction theory

例句：

1. 1.The theory of relativity is the foundation of modern physics.
   相对论理论是现代物理学的基础。
2. 2. In the field of quantum mechanics, Kirchhoff's diffraction theory has been widely applied.
   在量子力学领域，柯尔霍夫衍射理论得到了广泛的应用。
3. 3. The theory of light propagation through a medium was first proposed by Kirchhoff.
   光通过介质传播的理论最初是由柯尔霍夫提出的。