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coupling bolt /ˈkaʊntəwˌeɪt ˈɡaɪd ˈɹeɪl/ n

中文：联轴器螺栓

中文 · 联轴器螺栓Español · perno de acoplamientoFrançais · boulon d’accouplement
Meaning：Element made up of a nut and a bolt that attaches the runner to the shaft plate to transmit its movement to the runner. nuts bolt
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