The entire structure has benefited from an upgraded maintenanceprogram that has also included restoration of some of the EEOB's most spectacular historic interiors.
整个结构得益于一个升级的维护项目，包括对 EEOB 最壮观的历史内景的修复。
2
Do you have a preventive maintenanceprogram?
您有预防性维护计划吗？
3
Is there a formal documented preventive maintenanceprogram in place?