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单词 trommel
释义

WordReference Random House Unabridged Dictionary of American English © 2024
trom•mel  (troməl),USA pronunciation n. 
  1. Mininga rotary, cylindrical or conical screen for sorting ore, coal, gravel, etc., according to size.
  • German Trommel drum
  • 1875–80, American.

Collins Concise English Dictionary © HarperCollins Publishers::
trommel /ˈtrɒməl/ n
  1. a revolving cylindrical sieve used to screen crushed ore
Etymology: 19th Century: from German: a drum
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