The support bars are established for maintainers' safe when they enter inside the boarding bridge for maintenance.

设有保障维护人员进入登车桥内部维护时安全的支撑杆。

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The support bars are established for maintainers' safe when they enter inside the boarding bridge for maintenance.

设有保障维护人员进入登车桥内部维护时安全的支撑杆。

youdao