| |||
| 有效元件; 触发元件 | |||
| 有源组件 | |||
| 放射性元素 | |||
| 活动元件; 现用元素; ★ 有源元件 | |||
| 活性元素 | |||
| 激活元素; 能动元件; 活动的元素 | |||
| 现用元件 | |||
|
active-element : 22 phrases in 12 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Chemistry | 3 |
| Drilling | 1 |
| Earth sciences | 2 |
| Electronics | 3 |
| Information technology | 1 |
| Nuclear physics | 1 |
| Scientific | 2 |
| Sports | 1 |
| Technology | 5 |
| Wind Energy | 1 |