The two oscillator circuits under are suitable for employing crystal oscillators in series or parallel method: Modeling of nonlinear micromechanical resonators and their simulation Together with the harmonic‐equilibrium technique 的很多特性，如温度稳定性，老化稳定性，等效电路参数，容性负载要求等，都与切割方式密切相关�?石英 Style and design of resonators with the determination from the... https://socialexpresions.com/story4464474/5-essential-elements-for-bulk-crystal-oscillator