锻制大型曲轴的超声波检验的英文

standard specification for ultrasonic examination of forged crankshafts

• 锻制:    forge
• 大型:    large-scale; large ...
• 曲轴:    crank shaft
• 的:    4次方是 The fourth po ...
• 超声波:    ultrasonic; preter ...
• 检验:    checkout; test; ex ...