concrete slab track

...板轨道（floating slab track）及混凝土板轨道（concrete slab track）用扎带绑紧抓钩的工作已经完成。

Slab track -... ... 单位平板轨道 unit slab track 混凝土平板轨道 concrete slab track 连续道版式轨道 continuous slab track ...

... "混凝土版枕"," Concrete slab sleeper" "混凝土版轨道"," Concrete slab track" "混凝土泵(唧筒)"," Concrete pump" ...