The two oscillator circuits under are suitable for working with crystal oscillators in series or parallel method: Modeling of nonlinear micromechanical resonators as well as their simulation While using the harmonic‐stability system PDF 中原子或分子的排列具有三维空间的周期性，隔一定的距离重复出现，这种周期性规律是 这个平时使用的时候也叫做晶振，但是是不准确的，这个应该叫做晶体，或者叫... https://www.hxcrystals.com/seokeywords/bulk-crystal-oscillator.html