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单词 parallel edger
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parallel edger
parallel edger n. Mechanics Obsolete a pair of circular saws arranged in parallel at a variable distance apart, used to trim boards, etc., to a desired width.
ΚΠ
1867 Sci. Amer. 23 Feb. 129/3 Immense saving of time and labor and a much better quality of lumber produced by the use of Hayes & Newman's Patent Double Parallel Edger.
1879 Lumberman's Gaz. 15 Oct. The roller edger, now almost wholly superseded by the gang or parallel edger.
extracted from paralleln.adj.adv.
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