We assume that students are familiar with the wave character of light such as the fact that the wavelength can be determined from interference effects. 我们假定读者都熟悉光的波动性，例如从干涉效应可以测定波长这样的事实。
The interference among the same kind inclusions has been studied with the help of the digital holographic interferometry system. 摘要利用自主开发的数字全息干涉测量系统针对同类型夹杂物间的干涉效应开展研究。
