| 摘要 |
Device capable of floating on the water, intended to suck up the sand or other components from the bed of the water, for the purpose of recovering, in a mesh (sieve) provided for this purpose, the various objects which are buried therein. This device consists of a container open wall accommodating a turbine driven by a motor. A hose (tube) is fixed on either side of this turbine, and is intended to suck up the sand, and, on the other side, a mesh is fixed for recovering the desired objects. <IMAGE>
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