| Subject | English | Russian |
| sec.sys. | multiple envelope | многослойный пакет (конверт; Atlantic Alex_Odeychuk) |
| sec.sys. | multiple envelope | многослойный конверт (Atlantic Alex_Odeychuk) |
| el. | multiple walled envelope | многостенная оболочка |
| house. | multiple walled envelope | многослойная оболочка |