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【多选题】
无缝线路的连入法铺设需要注意哪几点
A.
将新铺单元轨条始端和已铺相邻单元轨条直接焊接
B.
低温换轨时 , 新轨落槽后应加垫滚筒 , 先 拉伸 后焊接
C.
应使用拉伸机和小型气压焊机规范作业
D.
电气化区段采用不停电换轨
题目标签：线路
相关题库：铁路线路工
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参考答案：
举一反三
【单选题】Subways are underground trains, which usually operate 24 hours a day. They are found in larger cities and usually run between the suburbs and the downtown area. Maps and schedules are available from t...
A.
within downtown areas
B.
away from city centers
C.
in or outside big modern cities
D.
between suburbs and city centers
相关题目：
【单选题】Subways are underground trains, which usually operate 24 hours a day. They are found in larger cities and usually run between the suburbs and the downtown area. Maps and schedules are available from t...
A.
within downtown areas
B.
away from city centers
C.
in or outside big modern cities
D.
between suburbs and city centers
参考解析：
题目纠错 0
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