acoustic stiffness reactance

例句：

1. 1. The acoustic stiffness of the material is crucial for its performance.
   材料的声学刚度对其性能至关重要。
2. 2. The reactance of the circuit affects its impedance.
   电路的反相率影响其阻抗。
3. 3.The engineer adjusted the reactance to optimize the system's performance.
   工程师调整了反相率以优化系统的性能。