But when the stiffness of thin paper is too small and relatively high tension, will roll welts rotating line, so a concrete analysis to specific issues.是什么意思_But when the stiffness of thin paper is too small and relatively high tension, will roll welts rotating line, so a concrete analysis to specific issues.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句