片语
electrospark hardening电火花硬化
electrospark engraving[机]
electrospark detector电火花检测器
electrospark forming[机]
Electrospark erosion电火花烧蚀
electrospark cutting[机]
electric spark[物] 电火花
electrospark welding电火花焊接
electrospark roughening电火花拉毛
electrospark machining[机]