slubbing
頭道粗紡
Slub, v. t. [imp. & p. p. Slubbed p. pr. & vb. n. Slubbing.] To draw out and twist slightly; -- said of slivers of wool.
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Slub·bing a. & n. from Slub.
Slubbing billy, or Slubbing machine, the machine by which slubs are formed.
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