Polyvinyl fluorideused for laminate films may be clear or pigmented. These films are bonded to metal substrates by an adhesive.是什么意思_Polyvinyl fluorideused for laminate films may be clear or pigmented. These films are bonded to metal substrates by an adhesive.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句