| 摘要 |
The system has a main container (4) and a powder conveying system (5) with a reserve container (51) for conveying a granular substance (3) into a processing device (2). Valves (6, 611, 612) are provided, so that an allowable quantity of the substance is supplied as work powder from the main container to the reserve container, in an operating state of the device. A minimum quantity of the substance is available in the reserve container. |
