integral multiple短语⁸⁴³²⁰⁺⁸ 基本例句 整倍数 The prerequisite of actively mode- locked fiber laser stable work is that the modulation signal frequency must be the integral multiple to the cavity resonance frequency. 但由于主动锁模光纤激光器腔内有较长的光纤，而光纤的长度极易因外界环境的影响而发生漂移，因而调制频率和腔长很难保持匹配。 cnki