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单词 diving bell
释义

WordReference Random House Unabridged Dictionary of American English © 2024
diving bell′, 
  1. Nautical, Naval Termsa chamber with an open bottom in which persons can go underwater without special apparatus, water being excluded from the upper part by compressed air fed in by a hose.
  • 1655–65

Collins Concise English Dictionary © HarperCollins Publishers::
diving bell n
  1. an early diving submersible having an open bottom and being supplied with compressed air
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