可选装预扩幅、归中等部件，适用于卷边的织物。

Pre-spreading part and centering device are optional parts, suit for edge curling fabrics.

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本发明是压板，属于防止写字时本子卷边的文具技术领域，解决小学生写字时本子卷边的问题。

The present invention relates to a paperweight board, belonging to the field of stationery technology, aimed at preventing exercise-book edge from curling when schoolchild writes on it.

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我们必须用胶把席子的边粘住，免得卷边。

We must glue the mat down at the edges to stop it curling.

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