自然极化 meaning in English

spontaneous polarization

Introducing several osl fabrication methods , mainly electric field poling method is investigated , and discussing the limit relation among poling electric field e , poling current i and natural poling intensity ps , and analyze the various factor affecting the osls quality . 4 . the experiment of aperiodical litaos multi - wavelength shg is demonstrated
3 、介绍了几种介质制备的方法，着重对高压电场极化法进行了理论研究，讨论了脉冲电压，电流及自然极化强度p _ s之间的制约关系，分析了影响成畴质量的几个物理因素。