| |||
| 显示选通门; 指示器闸门; 指示器门电路 | |||
|
indicator gate : 3 phrases in 3 subjects |
| Earth sciences | 1 |
| Hydroelectric power stations | 1 |
| Oil processing plants | 1 |
| |||
| 显示选通门; 指示器闸门; 指示器门电路 | |||
|
indicator gate : 3 phrases in 3 subjects |
| Earth sciences | 1 |
| Hydroelectric power stations | 1 |
| Oil processing plants | 1 |