“Van der Pol oscillator”的概念、定义、翻译、参考文献-科学参考

单词	Van der Pol oscillator
释义	Van der Pol oscillator [`van dǝr ´pōl ´äs·ǝ´lād·ǝr] ^ELECTRONICS A type of relaxation oscillator which has a single pentode tube and an external circuit with a capacitance that causes the device to switch between two values of the screen voltage. ^PHYSICS A vibrating system that is governed by an equation of the form ẍ + ε(-x + ¹/₃x³)+ x = 0.
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