道碴層 的英文怎麼說
中文拼音 [dàochácéng]
道碴層
英文
ballast mat-
( 5 ) adding and settling of ballast in delamination
( 5 )分層上碴和整道。The elasticity adjustable layer of slab track is a c a mortar mixture, which fuction is to provide the reasonable elasticity of track and is the key part of track structure
板式無碴軌道結構彈性調整層為ca砂漿墊層,其功能在於提供合理的軌道彈性,是軌道結構的關鍵組成部分。
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