at grade

常用短語

at-grade crossings鐵道交叉口

at-grade signal controlled junction交通燈控制地面路口；地面行人過路處

at-grade在同一水平面上；平面的

at grade level級水準

at grade pedestrian crossing地面行人過路處

cross barrier at grade crossing道囗欄木；道口欄木

side barrier at grade crossing道囗柵欄；道口柵欄

warning sign at grade crossing道囗警標；道口警標

at-grade pedestrian crossing地面行人過路處