signaling system的用法和樣例：
例句
- Federal investigators are trying to determine whether problems found with a signaling system could have contributed to the crash.
聯(lián)邦調查人員試圖確定是否已發(fā)現的信號系統的問(wèn)題能導致所發(fā)生的相撞事故。 - At the inquest, the accident was imputed to a mechanical failure of the signalling system.
經(jīng)調查，這次事故被歸咎于信號系統中出現的一個(gè)機械故障。
