After considering the interaction between electrons, the problem of a semiconductor interacting with light is discussed and the equation of exciton polarization wave excited by light wave is obtained.

考虑到电子空穴间的相互作用，我们讨论了光波与半导体的相互作用，得到了描述光激发电子空穴极化波的方程。

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Methods: Electrochemical technique was adopted to detect the changes of anode polarization curves of TA2 and TC4 after welding with laser or pulsed tungsten argon arc.

方法：采用动电位极化技术，分别测定激光焊接及脉冲氩弧焊接TA2和TC4后，材料阳极极化曲线的变化。

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By the measured results of pipe to soil polarization potential after one year, it is shown that the design is reasonable and the technical targets fulfil the design requirements.

实施保护一年后的管道极化电位检测结果表明，牺牲阳极保护工程设计合理，技术指标达到了设计与规范要求。

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Snowe, a self-described centrist, retired from the Senate in January after deciding she could not be effective given the polarization of the parties that left her increasingly alone in the middle.

NPR: Snowe Presses For Bipartisanship In New Book