Test twist in single open-end yarn by the untwist-retwist method
气流纱捻度的测定 退捻加捻法
中华人民共和国国家发展和改革委员会
本标准规定了用一次退捻加捻法测定气流纺纱捻度的方法。 本标准适用于测定气流纺纱的捻度。
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