线路停止使用 | |
agric. | line out of service |
WRU 信号 | |
IT | who-are-you |
Y信号 | |
IT | Y signal |
信号 | |
anim.husb. | signalment |
econ. | signals |
hydroel.st. | sign |
met. | annunciation; command; indication; signalling |
| |||
line out of service |
线路停止使用: 1 phrase in 1 subject |
Telecommunications | 1 |