| 摘要 |
An industrial unit (1) comprises internal parts (3, 4, 5) placed in a chamber (2, 8, 9) closed at least temporarily by a protective end (8, 9), the internal parts being connected to the atmosphere outside the chamber essentially via at least one line (6) allowing the passage of air from the exterior to the internal parts and from the internal parts to the exterior, the line containing at least one device (11) for trapping at least one undesirable atmospheric component. |
