resonance-level spacing

例句：

1. 1.The resonance frequency of the system is critical for its performance.
   该系统的共振频率对其性能至关重要。
2. 2.The resonance frequency of the oscillator is determined by the mass and stiffness of the spring.
   振荡器的共振频率由弹簧的质量与刚度决定。
3. 3. The resonance frequency of the mechanical system must be carefully controlled to avoid overshooting.
   机械系统的共振频率必须仔细控制，以避免过冲。