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movable jaw /ˈmaʊntɪn ˈsləʊp/ n

中文：活动钳口

中文 · 活动钳口Español · mordaza móvilFrançais · mors mobile
Meaning：Lower branch of the fork, whose gap enables the tool to adjust to the size of the object to be gripped.
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C-clamp Bench vise Adjustable wrench

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