A small roll of paper fits in the center of the pencil and is drawn out through a slit in the side.
小小的一卷纸恰好放在铅笔的中央部分，纸可以通过在铅笔边的缝抽出来。
Finally, the dynamic pressure distributions on the bottom and the side walls of slit-type buckets are discussed.
最后，还对窄缝挑坎底板及侧墙上压力分布的计算进行了探讨。
Finally, the dynamic pressure distributions on the bottom and the side walls of slit-type buckets are...
最后，还对窄缝挑坎底板及侧墙上压力分布的计算进行了探讨。
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