EDM (Electro Discharge Machining) is one kind of special processing method, and it is widely used in mechanicalarea.
电火花加工属于一种特殊的加工方式，在机械加工领域中逐渐得到了广泛的应用。
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No tourists were hurt when the ship sank because of mechanical problems, but the company tripled the original coral damage area by bungling salvage efforts.
Mechanical parts of the disc material by vibrating bodies, transported by the conveyor roller started to round into the testing area to ensure a smooth workpiece, automatic detection.