铁路桥梁用防水材料
waterproofing material for railway bridge
等温淬火球铁材料
isothermally-quenched ductile iron ADI
isothermally-quenched ductile iron(ADI
冻土铁路路基
railway embankments in cold regions
复合硅铁材料
composite ferrosilicon burden
钢铁材料碳硫测定
carbon and sulfur examination for iron and steel
高速铁路路基
thigh-speed railway subgrade
fhigh-speed railway subgrade
High-speed Railway Subgrade
高速铁路用弹簧钢
spring steel for high-speed railway application
高速铁路用重轨
high speed tracks
heavy rail for high speed rail way
rail for high speed tracks
公路铁路两用桥
road rail bridge
rail-cum-road bridge
highway and railway bi-purpose bridge
公路－铁路两用桥
bi-purposed bridge for highway and railway