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单词 presser-flyer
释义

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presser-flyer
presser-flyer n. Spinning Obsolete a kind of flyer (flyer n. 3e) with a spring arm which pressed against the bobbin to regulate tension while winding on the yarn.
ΚΠ
1872 Classified Index Subj. Invention (U.S. Patent Office) 152 Class 118. Spinning... Presser-flyers.
a1877 E. H. Knight Pract. Dict. Mech. II. 1785/1 Presser-flyer... One which has a spring arm pressing upon the bobbin upon which it delivers the yarn.
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更新时间:2025/3/12 6:07:32