| 摘要 |
A block (11) for use in a revetment system comprising a plurality of the blocks arranged to form a mat. The block has a top (11), bottom (12) and first and second opposed side surfaces (14, 15) extending between the top and bottom surfaces (11, 12) and third and fourth opposed side surfaces (16, 17) extending between the top, bottom, first and second side surfaces. The first and second side surfaces (14, 15) have a recess (20) on the first side surface (14) and a mating projection (23) on a second side surface (15) to mate adjacent blocks in a revetment system. On each of the third and fourth side surfaces (16, 17) is a channel (30) and two interlocking tips (32, 34) disposed on both side of the channel (30). The interlocking tips (32, 34) of the third and fourth side of one block are adapted to fit into the channel (30) of the third or fourth side of another block.</ SDOAB>
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