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单词 rock hammer
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rock hammer
rock hammer n. a hammer used for rock-breaking.
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1853 Weekly Raleigh (N. Carolina) Reg. 10 Aug. Just Received a lot of Blasting Powder, Picks, Rock Hammers, Blasting Fuse, [etc.].
1874 R. W. Raymond Statistics Mines & Mining 408 In preparing ore for the stamps,..I used merely rock-hammers.
2005 M. Bjornerud Reading Rocks ii. 52 These sediments..had to be buried by other layers and then evade erosion just long enough for humans wielding rock hammers to find them.
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更新时间:2024/12/24 7:25:36