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单词 coulter
释义

Definition of coulter in English:

coulter

(also colter)
noun ˈkəʊltəˈkoʊltər
  • 1A vertical cutting blade fixed in front of a ploughshare.

    犁刀

    Example sentencesExamples
    • A Canadian researcher, however, reported that adding a coulter in front of a sweep manure injector increased draft force by 27 percent and caused greater soil surface roughness compared with the sweep alone.
    • Suitable planting conditions exist when the surface soil is dry and has small hairline cracks that allow it to crumble when moved by the cutting coulters, disk openers, cover blades, and press wheels.
    • They lacked the long sleek lines of the local boats that went from tree to sea with such grace, under the shipwright's spell, turning the waves aside like coulters and combines, ploughing and harvesting.
    • The units are configured with 22-in. coulters in front, followed by a row cleaner, tillage/fertilizer knife and independently floating, 18-in. berm-building discs.
    • At first, researchers modified a transplanter by adding a front coulter to slice through cover crop residues, which worked well in moist, mellow soils.
    1. 1.1 The part of a seed drill that makes the furrow for the seed.
      (犁沟播种用的)播种机刀

Origin

Old English, from Latin culter 'knife or ploughshare'.

  • cutlass from late 16th century:

    The origin of cutlass for a sword with a slightly curved blade, is French coutelas, based on Latin cultellus ‘small knife’, source also of cutlery (Middle English) and coulter (Old English), the cutting blade of a plough.

Definition of coulter in US English:

coulter

(also colter)
nounˈkoʊltərˈkōltər
  • 1A vertical cutting blade fixed in front of a plowshare.

    犁刀

    Example sentencesExamples
    • At first, researchers modified a transplanter by adding a front coulter to slice through cover crop residues, which worked well in moist, mellow soils.
    • They lacked the long sleek lines of the local boats that went from tree to sea with such grace, under the shipwright's spell, turning the waves aside like coulters and combines, ploughing and harvesting.
    • A Canadian researcher, however, reported that adding a coulter in front of a sweep manure injector increased draft force by 27 percent and caused greater soil surface roughness compared with the sweep alone.
    • Suitable planting conditions exist when the surface soil is dry and has small hairline cracks that allow it to crumble when moved by the cutting coulters, disk openers, cover blades, and press wheels.
    • The units are configured with 22-in. coulters in front, followed by a row cleaner, tillage/fertilizer knife and independently floating, 18-in. berm-building discs.
    1. 1.1 The part of a seed drill that makes the furrow for the seed.
      (犁沟播种用的)播种机刀

Origin

Old English, from Latin culter ‘knife or plowshare’.

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更新时间:2024/10/19 8:57:58