Huygens' principle

例句：

1. 1. The discovery of the principle is a significant breakthrough in the field.
   这一发现在领域内是一次重大突破。
2. 2. The principle was proposed by Huygens, who made significant contributions to science.
   这一原理由胡永根提出，他为科学做出了重大贡献。
3. 3. The principle has been applied in various fields, including engineering and medicine.
   这一原理已被应用于工程和医学等多个领域。