四分之一波长线 | |
hydroel.st. | quarter wave line |
tech. | quarter-wave line |
段 | |
geol. | series |
hydroel.st. | segment |
IT | thread |
mech. | member |
met. | stage; zone |
oil | part |
| |||
quarter wave line | |||
quarter-wave line | |||
quarter-wavelength line |
四分之一波长线 : 9 phrases in 5 subjects |
Air defense | 3 |
General | 2 |
Geophysics | 1 |
Technology | 2 |
Telecommunications | 1 |