paper tube ; paper bobbin ; cylinder paper
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一旦你完成了课本展示的内容，你就会扔掉这些烟斗通条、吸管和硬纸管。
Once you are done demonstrating whatever concept was in the textbook, you throw away the pipe cleaners, the straws, the cardboard tubes.
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P-201包装用纸管的构造
P - 201 Structure of the packing paper tube
本公司是一家纸管专业生产厂家。
The Company is a professional manufacturer of paper tube.
纸管：纸用纸张加工成的管状的物体。大多纸管为螺旋纸管和无缝纸管。
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