道碴路基 的英文怎麼說

中文拼音 [dàochá]
道碴路基 英文
ballast bed
  • : Ⅰ名詞(道路) road; way; route; path 2 (水流通過的途徑) channel; course 3 (方向; 方法; 道理) ...
  • : 碴動詞[方言] (碎片碰破皮肉) be cut (by broken glass, china, etc. )
  • : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
  • 路基 : bed; roadbed; subgrade; substructure
  1. Coarse gravel or crushed rock laid to form a bed for roads or railroads

    用來鋪公或鐵的粗砂礫或碎石
  2. On the railway line nuder normal major repair cycle, rm - 80 full section undercutting ballast cleaning machine has enough excavation ability in working condition, productivity can come up with it ' s design standard

    對于正常大修周期的線上, rm80型全斷面清篩機作業運行工況具有足夠的挖掘能力,作業效率本上能夠達到其設計標準,這些在國外已經得到了充分的證明。
  3. High - speed track proposes higher demands for subgrade and bed. the application of ballastless slab track is the main tendency for assuring the high stability and smooth of the track

    高速軌床提出了很高的要求,為保證軌的強穩定性和高平順性,採用板式無的結構形式已成為一種趨勢。
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