| Subject | English | Russian |
| Игорь Миг | drop through the floor | стремительно падать |
| Игорь Миг | drop through the floor | рухнуть |
| Игорь Миг | drop through the floor | проседать |
| gen. | drop through the floor | резко снижаться (e.g. "The cost of whole genome sequencing – mapping the DNA code of any human being – is dropping through the floor, from £750m for the first-ever sequence to probably as little as £1,000 soon."  guardian.co.uk Aiduza) |
| gas.proc. | pressure drop through gasifier | потери давления в канале газификации |