螺孔裂纹 bolt hole crack 线路大修 major repair of reack ； overhaul of track ；track renewal 线路中修 intermediate repair of track ..
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... 线路大修 major repair of track 线路更新 ;线路大修 track renewal;track overhauling 线路修复 track restoration ...
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螺孔裂纹 bolt hole crack 线路大修 major repair of reack ； overhaul of track ；track renewal 线路中修 intermediate repair of track ..
基于52个网页-相关网页
... overhauling cost 大修理费 Track overhauling 线路更新 ; 线路大修 regular overhauling 定期检修 ...
基于36个网页-相关网页
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