| 摘要 |
<p>The device has a retention opening (4) arranged at an upper end of a chamber (3), and a fastening device (5) arranged at the retention opening. The fastening device comprises a negative pressure chamber (6) extending at a circumference of the retention opening. The fastening device fixes a container at the retention opening. The negative pressure chamber comprises suction openings (8) arranged in series in a circumferential direction to fix a lower side of the container at the retention opening during emptying by low pressure.</p> |
