Secure Data | Network System
| network system abbr. | |
| avia. | 网络系统; 网络系统供电网系统 |
| el. | 供电网系统 |
| interntl.trade. | 网状制 |
| English thesaurus | |||
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| SD | |||
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Secure Data : 15 phrases in 5 subjects |
| Air defense | 2 |
| Aviation | 3 |
| Electronic commerce | 1 |
| Electronics | 8 |
| Space | 1 |