| |||
proper motion | |||
background (of a device) | |||
background effect | |||
background | |||
background effect (of а radiation meter) |
mouvement propre : 23 phrases in 9 subjects |
Astronomy | 6 |
Finances | 1 |
General | 2 |
High energy physics | 2 |
Measuring instruments | 1 |
Natural resourses and wildlife conservation | 1 |
Natural sciences | 1 |
Nuclear physics | 2 |
Радиоактивное излучение | 7 |