基本解释[土木建築工程]輕型鋼軌英汉例句雙語例句The cast steel pedestal of Chongqing's light-rail bears great importance for the safety of the whole system.重慶市跨坐式單軌交通軌道梁鑄鋼支座的狀況關系到整個單軌交通運行的安全性。light steel rail更多例句专业释义土木建築工程輕型鋼軌