网格线交叉分布在各绘图页上，就像传统的图纸一样。

Grid lines crisscross each drawing page like those on traditional graph paper.

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在这一页的底部划一条线。

Draw a line at the bottom of the page.

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在此页底部画一条水平线。

Draw a horizontal line across the bottom of the page.

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拖到绘图页上。较长的线代表正极。

Drag onto the page. the longer line represents the positive pole.

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拖到绘图页上。较长的线代表正极。

Drag onto the page. the longer line represents the positive pole.

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