In a study of needled felts, crimp was found to be a very influential factor.

对针刺毛毡进行研究后发现卷曲是一项重要的影响因素。

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This article describes the revising process of Industry standard "Fibreglass Needled Felts for Filtration" and the main contents of the standard draft reported for approval.

前言：本文描述了《过滤用玻璃纤维针刺毡》行业标准的修订过程和标准报批稿的主要内容。

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