 |
| |||
| doughnut; donut; torus; vacuum doughnut (of a betatron or synchrotron); vacuum donut (of a betatron or synchrotron) | |||
| toroid | |||
| |||
| built-up barrel | |||
| ring barrel | |||
|
| |||
| doughnut; donut; torus; vacuum doughnut (of a betatron or synchrotron); vacuum donut (of a betatron or synchrotron) | |||
| toroid | |||
| |||
| built-up barrel | |||
| ring barrel | |||
