| Subject | English | Chinese |
| space | CCCCS C⁴S command control communication computer system | 指挥控制通信计算机系统 |
| mil., air.def. | command communication computer intelligence | 指挥通信计算机情报 |
| telecom. | command, control, communication, computer and information system | 指挥、控制、通信、计算机与情报系统 |
| mil., air.def. | command, control, communication, computer, and intelligence | 指挥、控制、通信、计算机与情报 |
| 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 |
| space | command, control, communication, computer, intelligence, surveillance and reconnaissance | 指挥、控制、通信、计算机、情报、监视和侦察 |
| mil., air.def. | command control communication computer kill intelligence surveillance and reconnaissance | 一体化指挥控制通信计算机杀伤情报监视侦察系统 |
| nautic., tech. | commands control, communication, computer, intelligence, surveillance and reconnaissance | 美军情报监视与侦察系统 |
| telecom. | communication computer operating system | 通信计算机操作系统 |
| earth.sc. | communication computer operations system | 通信计算机操作系统 |