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）通过销（5）枢转设置在杠杆件（2）上，该销（5）作为杠杆的支点。
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）通过销（5）枢转设置在杠杆件（2）上，该销（5）作为杠杆的支点。
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