| English | Chinese |
| maintenance, operation, administration | 维护、操作、管理 |
| operation, administration and maintenance system | 运行、管理和维护系统 |
| operation, administration and maintenance center | 运行、管理和维护中心 |
| operation, administration and maintenance center operation system | 运行、管理和维护中心运行系统 |
| operation, administration, maintenance and planning | 运行、管理、维护和规划 |
| operation, administration, maintenance and provisioning | 运行、管理、维护和保障 |
| operation, maintenance and administration part | 运行、维护与管理部分 |
| physical layer operation, administration and maintenance | 物理层运行、管理和维护 |
