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The base member (1) is pivotally connected to the lever member (2) by a pin (5) that provides a leverage fulcrum point. 基板件(1)通過銷(5)樞轉(zhuǎn)設(shè)置在杠桿件(2)上,該銷(5)作爲(wèi)杠桿的支點(diǎn)。 ip.com