首先，他们开始使用半管和垂直坡道滑板。

First, they started with half-pipe and vert ramp skateboarding.

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用于去除覆层的工具（50）围绕一个垂直于玻璃板（2）的轴线（6）可旋转地支承在滑板（4）上。

The tool (50) for removing coatings is mounted on the slide (4) in a manner that enables it to pivot about an axis (61) that is normal to the glass pane (2).

youdao

用于去除覆层的工具（50）围绕一个垂直于玻璃板（2）的轴线（6）可旋转地支承在滑板（4）上。

The tool (50) for removing coatings is mounted on the slide (4) in a manner that enables it to pivot about an axis (61) that is normal to the glass pane (2).

youdao