片语
high frequency electric spark machining高频电火花加工
electric spark machining[机] 电火花加工;放电加工
electro-spark machining电脉沖加工
spark erosion machining电火花加工法
electric c spark machining电火花加工
spark-machining electrode电火花加工电极
electric spark tiny machining电火花微细加工
electric simulation spark machining电火花加工