cabletrench

例句：

1. 1. The cable trenches were dug to connect the two substations.
   为了连接两个变电站，挖掘了电缆沟。
2. 2. The cable trenches were filled with water to prevent leaks.
   电缆沟被填满水以防止泄漏。
3. 3. The cable trenches were used for power transmission.
   电缆沟用于电力传输。