bull-headed rail [铁路] 圆头钢轨 ; 工字钢轨
double-headed rail 工字轨
single-headed rail 单头轨
Double headed rail 双头轨条
flat headed rail 平头轨
flat-headed rail 平头钢轨
single headed rail 单头轨
double -headed rail 工字轨
Your claim that high-speed rail exacerbates regional divisions and does little to promote economic development is wrong-headed.
ECONOMIST: Letters
For a boxcar of widgets to make it across country, it typically has to stop and sit in rail yards waiting to get "humped, " or reshuffled, with other boxcars headed in the same direction five times.
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