单词	square wave
释义	square wave A train of rectangular voltage pulses that alternate between two fixed values for equal lengths of time. The time of transition between each fixed value is negligible compared to the duration of the fixed value. See diagram. Square wave
随便看	polarizability polarization polarization of light polarizer polarizing angle Polaroid polaron pole pollution polonium polychromatic radiation polygon polygon of forces polyhedron polynomial population inversion population type positive charge positive feedback positron positron emission tomography potassium-argon dating potential barrier potential difference potential divider

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。