| http://www.w3.org/ns/prov#value | - A supporting fabric bearing one or more layers of sand, gravel, stones, clay, loam or like bulk or other material is particularly suitable for use on the bottom of the sea if one side of the supporting fabric is provided with a number of spaced transverse partitions, at intervals of preferably 0.25 to 3 m, which are formed by a mat, a sheet of netting, a web or a cloth having a height of 10 to 100
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