| 摘要 |
A platform system (100) for underwater activities comprises a body element (101) and at least one wall structure (102) coupled with said body element and configured to form a space (104). The wall structure (102) is coupled with said body element (101) so to form at least one opening (105) at its lower portion to water between the wall structure (102) and body element (101). The space (104) is configured to be pressurized by an air pressure providing means (107) so to compensate stress at the wall structure caused by the pressure difference between the space (104) and the water (106) outside the space (104) and to keep the water surface at the opening (105) in a certain level. |
