速度跟踪 | |
space | velocity tracking |
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 系统 | |
IT | TN 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 |
系统 | |
tech. | system |
| |||
velocity tracking |
速度跟踪 : 37 phrases in 9 subjects |
Air defense | 8 |
Aviation | 3 |
Computer numerical control | 1 |
Earth sciences | 1 |
Electronics | 3 |
Mathematics | 1 |
Space | 16 |
Technology | 3 |
Telecommunications | 1 |