振动器振动参数
vibrating parameters of vibrator
电动振动器
electrovibrator
electrodynamic vibrator
electrodynamic shaker
Electrodynamic vibration generator
electric vibrator
变速箱制动器壳体总成
transmission brake housing assembly
点火提前致动器壳体
timing advance actuator housing
坝体振动信号
dam body vibration signal