| |||
line-focus beam; ribbon beam; sheetlike beam | |||
flat pencil; flat sheaf; planar pencil | |||
flat beam; plane beam; strip beam | |||
sheet beam | |||
| |||
sheet beam (электронов) |
плоский пучок: 6 phrases in 4 subjects |
Astronautics | 1 |
Electronics | 3 |
Energy industry | 1 |
Mathematics | 1 |