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tension spring /ˈtɛnʃən ˈspɹɪŋ/ n

中文：张力弹簧

中文 · 张力弹簧Español · resorte del tensorFrançais · pêcheur
Meaning：Spindle that maintains thread tension.
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Found in these illustrated scenes（4）

Knitting machine tension device Sewing machine Fitness Equipment Windshield wiper

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