| 摘要 |
The protection equipment from noise comprises flexible plates or strips (1) of sound-insulating material. These are mounted on the side of a supporting wall (10) towards the source of the noise, and are secured to it by anchoring devices (2). The wall is of cast concrete, into which undercut ribs or bosses on the plates or strips are cast. The plates or strips have a structured and porous front surface (8). ADVANTAGE - Maximum sound absorption in addition to protection.
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