道碴 meaning in English
ballast aggregate; ballast
◇道碴材料 ballasting; 道碴车 ballastcar; ballast wagon; 道碴路基 ballast roadbed; 道碴耙 ballast rake; 道碴清饰机 ballast screening machine
Examples
- The rail beds well on the ballast .
铁轨在道碴上搁得很稳。 - The rails of the two tracks are supported on wooden ties resting on a ballast .
两条线路的钢轨放置在有道碴承托的枕木上。 - General technical specification for little ballast cleaning machine
小型道碴清筛机通用技术条件 - Ballast or pebble pitch forks 9 teeth
道碴和砾石的叉子九个齿 - Coarse gravel or crushed rock laid to form a bed for roads or railroads
道碴用来铺公路或铁路路基的粗砂砾或碎石