 |
| |||
| gas-discharge photocell; gas-filled photocell; phototube | |||
| gas cell; gas phototube; gas-filled phototube; gas-tilled cell; photoglow tube; soft phototube; gas-filled cell | |||
| ионный фотоэлемент: 2 短语, 1 学科 |
| 电子产品 | 2 |
|
| |||
| gas-discharge photocell; gas-filled photocell; phototube | |||
| gas cell; gas phototube; gas-filled phototube; gas-tilled cell; photoglow tube; soft phototube; gas-filled cell | |||
| ионный фотоэлемент: 2 短语, 1 学科 |
| 电子产品 | 2 |