 |
| |||
| 灯座 | |||
|
bulb socket : 9 phrases in 6 subjects |
| Architecture | 2 |
| Automobiles | 1 |
| Lighting other than cinema | 1 |
| Scientific | 1 |
| Shipbuilding | 1 |
| Technology | 3 |
|
| |||
| 灯座 | |||
|
bulb socket : 9 phrases in 6 subjects |
| Architecture | 2 |
| Automobiles | 1 |
| Lighting other than cinema | 1 |
| Scientific | 1 |
| Shipbuilding | 1 |
| Technology | 3 |