The application of ultrasonic vibration in metal plasticity working process is a new technique for accelerating working process and improving products quantity.
用超声振动进行金属塑性加工是金属在冷加工过程中加上超声频振动，以促进工艺过程和改善产品质量的一种新工艺。
The application of ultrasonic vibration in metal plasticity working process is a new technique for accelerating working process and improving products quantity.
用超声振动进行金属塑性加工是金属在冷加工过程中加上超声频振动，以促进工艺过程和改善产品质量的一种新工艺。
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