| Subject | English | Chinese |
| mil., air.def. | command, control, communication and computer system | C⁴S指挥控制通信计算机系统 |
| space | command, control, communication and computer system | 指挥、控制、通信、计算机系统 |
| mil., air.def. | command, control, communication and computer system | 指挥、控制、通信与计算机系统 |
| telecom. | command, control, communication, computer and information system | 指挥、控制、通信、计算机与情报系统 |
| space | command control communication computer and intelligence system | 指挥、控制、通信、计算机及情报系统 (又称自动化作战指挥系统) |
| space | command control communication computer and intelligence system | C4 系统 |