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关于谷歌趋势的使用错误分析，以餐具一级词和便携餐具二级词举例下图
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餐具市场竞争和需求都很大，但是便携餐具尤其便携折叠吸管是近年环保需求导致上升很大
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折叠吸管专利 https://pdfpiw.uspto.gov/.piw?PageNum=0&docid=10123641&IDKey=D8ED2DBAAEFF%0D%0A&HomeUrl=http%3A%2F%2Fpatft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect1%3DPTO2%2526Sect2%3DHITOFF%2526p%3D1%2526u%3D%25252Fnetahtml%25252FPTO%25252Fsearch-bool.html%2526r%3D2%2526f%3DG%2526l%3D50%2526co1%3DAND%2526d%3DPTXT%2526s1%3D%252522Foldable%252Breusable%252Bdrinking%252Bstraw%252522%2526OS%3D%252522Foldable%252Breusable%252Bdrinking%252Bstraw%252522%2526RS%3D%252522Foldable%252Breusable%252Bdrinking%252Bstraw%252522 和https://pdfpiw.uspto.gov/.piw?PageNum=0&docid=D0853164&IDKey=F69201A6778A%0D%0A&HomeUrl=http%3A%2F%2Fpatft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect1%3DPTO2%2526Sect2%3DHITOFF%2526p%3D1%2526u%3D%25252Fnetahtml%25252FPTO%25252Fsearch-bool.html%2526r%3D10%2526f%3DG%2526l%3D50%2526co1%3DAND%2526d%3DPTXT%2526s1%3Dstraws%2526OS%3Dstraws%2526RS%3Dstraws