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| Subject | English | Chinese |
| telecom. | common air interface | CT2/CAI 标准原为英国 MPT1375规范,现成为 ETSI 标准 |
| el. | common air interface | 公用无线电接口 |
| telecom. | Common Air Interface | CT2 无绳电话的公共空间接口 (ETSI 的 CT2 标准， 即 CT2/CAI) |
| space | common air interface | 公共空中接口 |
| telecom. | common air interface | CT2 无绳电话公共空中接口标准 |
| el. | second generation cordless telephone with common air interface | 带公用无线电接口的第二代无绳电话 |