求翻译：与既有其他干线光缆交越时，通知有关部门到现场配合开挖，在交越点予埋塑料管防护后立即回填，确保既有光缆安全。是什么意思？

With both other trunk fiber optic cable crossover, notify the relevant departments to the scene with the excavation, backfill immediately after the crossover point I buried plastic pipe protection, to ensure the safety of both fiber optic cable.

The existing fiber optic cable to the other route is to notify the relevant departments, with on-site excavation, the more points in the plastic tube to be buried immediately after protective backing, make sure that both fiber optic cable.

With when already has other skeleton line optical cable junction, the notice department concerned to the scene coordination excavates, gives buries the plastic tube protection after the junction more spot immediately the backfill, guarantees already has the optical cable security.

And when both other trunk cable crossover, notify the proper authorities to the scene to tie in with the excavation, backfill immediately after crossover point to protection of buried plastic pipe, ensure the safety of existing fiber-optic cable.

正在翻译，请等待...