acoustic power lever的用法和样例：
- It acclaims that there is the best and securest way to power lever your character to your desired high level fast.
- The threat of sanctions is our most powerful lever for peace.
- In this paper,a method for measuring acoustic power of plane piston transducer based on calorimetry is presented.
- The power lever and thick-film driving circuit of traditional inverter were replaced by IPM to evloution inverter.Some problems in using IPM are proposed and solved.