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第三代移动通信 | |
el. | third generation mobile communications |
DPA系统 | |
pest.contr. | DPA System |
F系统 | |
rem.sens. | F system |
PELV系统 | |
el.mach. | PELV system |
SELV系统 | |
el.mach. | SELV system |
TN-C 系统 | |
IT | TN-C system |
TN-C-S 系统 | |
IT | TN-C-S system |
TN-S 系统 | |
IT | TN-S system |
| |||
third generation mobile communications | |||
3G mobile communications; third-generation mobile communications |
第三代移动通信 : 9 phrases in 3 subjects |
Computer networks | 4 |
Electronics | 2 |
Information technology | 3 |