... 感应环形高速继电器 induction ring type high-speed relay; 感应回火 induction tempering; 感应火花 induced spark; ...
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induction tempering
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参考来源 - 摇臂轴螺纹延迟断裂原因分析及预防措施 Analysis and Prevention Measures of Pitman Shaft Thread Delayed Fracture
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