一、解釋名詞: 曲線角度(degree of curve) 橫渡線(crossover) 軌枕墊鈑(tie plate) 岔心號數(frog number)
詳解 (共 3 筆)
You are the Best.
詳解 #1774266
曲線角度(degree of curve) 橫渡線(crossover) 軌枕墊鈑(tie plate) 岔心號數(frog number)
You are the Best.
詳解 #1772804
erewtr
MJ
詳解 #4638998