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double floatdouble float
Body of slightly negative buoyancy immersed in and moving with a stream at a known depth and whose position is indicated by a small surface float from which it is suspended. (TR)
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double floatdouble float
Body of slightly negative buoyancy immersed in and moving with a stream at a known depth and whose position is indicated by a small surface float from which it is suspended. (TR)
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