| 摘要 |
The system has an inversion system (13) including orientation devices (14a, 14b), where each device has fixed structures and movable units (16a, 16b) which are arranged in orientation cavities. The units are moved between connection positions in which the units communicate and isolate corresponding connection openings with inlet and outlet openings and from the outlet and inlet openings. The devices are arranged with respect to each other, such that the units of one of the devices are in one of the positions when the units of the other device are in the other position. |
