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介绍了采用立石C200H PLC与SZIB反并联晶闸管可逆调速器改造龙门铣逻辑控制与直流同速调速系统.
This paper introduces the retrofit of gantry milling logic control and DC synchronous speed control system by using vertical stone C200H PLC and SZIB anti - parallel thyristor reversible governor.