文章介绍了一般性纬缩疵点和纬丝头端缠绕形成的缩纬疵点的产生原因和防治措施。

In this article are introduced the forming causes of normal weft loop and weft loop caused by the interlaced filament ends and the measures to prevent them.

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该冲头包括端部，该端部适于刺穿入口孔并折弯环绕该入口孔的材料，以沿着该入口孔的内缘形成残留的废料。

The punch includes an end portion adapted to Pierce an entry hole and bend material around the entry hole to form a retained slug along an inner edge of the entry hole.

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光敏三极管与发光二极管沿径向安装于端盖上形成测量头。

The phototransistor and the light emitting diode are arranged on the end cover along a radical direction to form a measurement head.

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Different kinds of polarity form, there's a head, and there's a tail, there's a back, there's a front, there's a left side and there's a right side.

不同的极性开始形成,有头端,也有尾端,有后面,也有前面,有左侧,也有右侧

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