 |
| |||
| threefold block; treble-sheaved block; triple-sheaved block; treble block; triple block; trispast; trispaston | |||
| three-fold block | |||
| трёхшкивный блок: 5 phrases in 3 subjects |
| Nautical | 2 |
| Oil / petroleum | 2 |
| Oilfields | 1 |
|
| |||
| threefold block; treble-sheaved block; triple-sheaved block; treble block; triple block; trispast; trispaston | |||
| three-fold block | |||
| трёхшкивный блок: 5 phrases in 3 subjects |
| Nautical | 2 |
| Oil / petroleum | 2 |
| Oilfields | 1 |