重复线路工高级工选

改道时,木枕地段应使铁垫板外肩靠贴轨底边;混凝土枕地段应调整不同号码扣板、轨距挡板、挡板座,并可用厚度不超过( )mm的垫片调整尺寸。

发布于 2021-03-12 10:55:04

【单选题】
A 2
B 3
C 4
D 5

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qwertyyu 2023-03-12

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