窄轨距 meaning in Chinese

narrow gage
narrow gauge

Rolling stock . wheel sets for narrow - gauge line rolling stock . theoretical wheel profile of 125 and 130 mm width
铁路车辆.窄轨距铁路车辆的轮组.和毫米宽度的理论车轮剖面
Narrow track , wheeled agricultural and forestry tractors . front - mounted overturn . dynamic and static test methods . acceptance conditions
农用窄轨距轮式拖拉机和林业拖拉机.前悬挂倾翻装置.动态试验和静态试验方法.验收条件