tiefseetaucherkugel

listen to the pronunciation of tiefseetaucherkugel
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bathysphere
A spherical steel deep-diving chamber with perspex windows, in which persons are lowered to the depths by a cable to study the oceans and deep-sea life; the precursor to the bathyscaphe
spherical deep diving apparatus (lowered by a cable) for underwater exploration
{i} ball shaped vessel for underwater observation