| Subject | English | Chinese |
| el. | common programming interface for communications | 通信用通用程序设计接口 |
| multimed. | common programming interface for communications | 公共编程通信接口 |
| el. | X. 400 Applications Programming Interface Association | X 系列规则 400 应用程序设计接口协会 (X. 400是一个用于国际电子邮件处理的 ITU-T 标准) |