Make a screw out of the curve shown below using a standard Revolve.
在曲线外制作螺钉的模型，用标准旋转如下图所示。
Install the pillar on the second standard section, and fix it with the screw.
在第二个标准节上端装上顶梁，并用螺栓固定好。
Place a standard nut on the screw and tighten it down securely.
放置一个标准的螺丝和螺母拧紧了安全。
Place a standard nut on the screw and tighten it down securely.
放置一个标准的螺丝和螺母拧紧了安全。
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