单词 | disc harrow |
释义 | > as lemmasdisc harrow disc harrow n. [ < disc n. + harrow n.1] Agriculture a harrow bearing rows of sharp-edged, slightly concave metal discs to break up the soil. ΚΠ 1858 J. Slight & R. S. Burn Bk. Farm Implements ii. §3 The Iron-web or Disc-Harrow is a late invention by the ingenious and indefatigable Mr Smith, late of Deanston, for the purpose of covering-in grass. 1891 R. Wallace Rural Econ. Austral. & N.Z. xix. 270 The Disc-Harrow..with its saucer-shaped discs strung on two axle-shafts. 2003 Tractor & Machinery Oct. 85 (caption) Parmiter Force 8 disc harrows (which either mount or trail). < as lemmas |
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