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为确保行车安全,各型车钩闭锁时在新造或厂、段修中对于钩舌与钩腕间的最短距离PK值均有限度要求,其控制范围见表1。
In order to ensure the safety of driving, the shortest distance PK between the knuckle hook and the wrist should be limited in new or factory or section repair when each type of coupler is locked. The control range is shown in Table 1.