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用法例句

Due to design problem on controlling circuit of clamshell crane in calcination workshop, the wire rope damage, overload device breakdown and contactor burm-out are frequently occured during operation.

煅烧车间抓斗吊车电气控制回路由于设计上原因 ,在操作中钢绳经常被拉断、主过流继电器烧坏、接触器触头烧坏。