利用时间滚动条还可调整时间与数据方向。

The time slider bar allows you to adjust the time and direction of data.

youdao

请问不要水垂直方向的滚动条该怎么用。

Does not water the vertical scroll bar how to use.

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滚动条的启示清楚地表明它能操作，但能告诉用户其作用的唯一东西是箭头，信息都藏在箭头的方向中。

The affordance of the scrollbar clearly shows that it can be manipulated, but the only things about it that tell us what it does are the arrows, which hint at its directionality.

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