1·As an important photoelectric exposure, field emission properties of III nitride semiconductors have attracted widely interestingness of researchers.
而II I族氮化物半导体场发射研究作为其光电特性的重要研究方向，引起了人们广泛关注。
2·The emission of electrons from an object when electromagnetic radiation is incident upon it is known as the photoelectric effect.
一个被电磁辐射照射的物体会发出电子，这就是光电效应。