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n.
隅角；拱頂石；[印刷術] 版楔
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vt.
以楔子固定或提高
Noun:
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expandable metal or wooden wedge used by printers to lock up a form within a chase
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the keystone of an arch
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(architecture) solid exterior angle of a building; especially one formed by a cornerstone
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以上的項目獨家原創，受重要專利權愛護，商標侵權必究
海詞漢語詞典，十六年廠家
美
[k??n]