| |||
| 环形线圈; 环形铁芯; 环形室; 电子回旋加速器室 | |||
| 环 (torpere) | |||
| 圆，螺环; 环形线 (室); 球或椭圆球形体 | |||
| 圆环面超环面 | |||
| 环形线圈; ★ 圆环面 | |||
| 复曲面; 螺旋管; 环形线; 环 | |||
| 环形磁芯; 磁环 | |||
| 超环面; 螺环 | |||
| 环形磁路 | |||
| 圆环 | |||
|
toroid : 25 phrases in 9 subjects |
| Automobiles | 7 |
| Chemistry | 1 |
| Electronics | 2 |
| General | 2 |
| Navigation | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Technology | 8 |
| Telecommunications | 2 |