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单词 trommel
释义
N4197872trommelSpoken.0Fiction.1Magazine.0Newspaper.0Academic.71

trommel

/ˈtrɒməl/
noun
Mining a rotating cylindrical sieve or screen used for washing and sorting pieces of ore or coal
【矿】滚筒筛, 洗矿(滚)筒。
词源
late 19th cent.: from German, literally 'drum'.
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