Also available is an adapter piece for linear variable filters that fits onto a cuvette holder to clamp the filter slide carriers into place. 我们还提供可用线性可变滤光片的适配器片，它可安装在试管支架上用于将滤光片幻灯机固定在合适的位置。
If you have children, you might want to squash the roll before putting it on the holder to make it harder to unroll and waste the paper. 如果你家中有小孩，你可能会想要在把这个纸卷放在支架上前先压扁，这样纸卷不太会滚动也不会浪费纸张。
