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单词 hopperings
释义 hopperings, n. pl.|ˈhɒpərɪŋz|
[f. hopper1 + -ing1.]
Gravel retained in the hopper in gold- or diamond-washing.
1893Westm. Gaz. 29 Apr. 7/3 The yield of diamonds from the hopperings is 6½ carats per 100 loads.1898Daily News 27 Jan. 9/5 Washed 197 loads from the mine, 3,725 loads lumps and hopperings producing 126 carats.
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更新时间:2024/11/10 1:25:01