 |
| |||
| fast wave (S1 MichaelBurov) | |||
| personnel office (Cmilana); personnel officer (Киселев voen14); personnel staff officer | |||
| the first peak measured by Rock-Eval (S1 is the milligrams of hydrocarbons that can be thermally distilled from 1 gm of rock); lower Silurian | |||
| |||
| Personnel Staff Officer | |||
| battalion or brigade manpower and personnel staff officer (Marine Corps battalion or regiment) | |||
| First Sacral Vertebra | |||
| |||
| first heart sound | |||
| S1: 1 phrase in 1 subject |
| Abbreviation | 1 |