为达到减少环锭纺纱线毛羽的目的，采用了错位纺纱的试验方案。
The technique of mismatch spinning to reduce ring spinning yarn hairiness is described in detail.
疗效不佳的原因主要与拆石膏后下地活动发生错位：固定不结实；钢丝环捆扎过大过小，或位置偏前、偏后等因素有关。
The causes of failure were related with malposition of fracture site after discard of plaster of paris, unsteady fixation, too big or too small of ligation, or misposition etc.
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