As to the serious problems of yarn defect in the hollow leg of the full closed flyers on the roving frames, idea of semi-closed flyers is put forth for consideration.
针对目前粗纱机用全封闭锭翼空心臂内积存的纱疵非常突出这一问题，提出了半封闭锭翼这一概念。
As to the serious problems of yarn defect in the hollow leg of the full closed flyers on the roving frames, idea of semi-closed flyers is put forth for consideration.
针对目前粗纱机用全封闭锭翼空心臂内积存的纱疵非常突出这一问题，提出了半封闭锭翼这一概念。
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