The Chinese-built dust removal filtration material is made through hot-roll moulding of polyester fiber and coated with high-polymer frothing.是什么意思_The Chinese-built dust removal filtration material is made through hot-roll moulding of polyester fiber and coated with high-polymer frothing.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句