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This tissue every 10 piece ofpaper marked with red numbers to paper surplus extraction.You will find the tissue quickly run out of , and then produced tissue saving ideas.
Beijing Technology and Business University
Beijing, China
Lihaozhe Li,
Beijing Technology and Business University
Miao Lu,
Beijing Technology and Business University
Zirui Liu,
Beijing Technology and Business University
Yingying Hong,
Beijing Technology and Business University