| 摘要 |
PCT No. PCT/SE82/00245 Sec. 371 Date Mar. 31, 1983 Sec. 102(e) Date Mar. 31, 1983 PCT Filed Jul. 15, 1982 PCT Pub. No. WO83/00517 PCT Pub. Date Feb. 17, 1983.The present invention provides a flexible, rectangular wall (1) which can be immersed purely vertically in a waterway and kept partially immersed by means of sheet-shaped floating bodies (5-6) arranged perpendicular to the wall element (1) on both sides thereof.
|
