短語詞組短語polyurethane foam insulation layer 聚氨酯泡沫保溫層identification of foam layer 泡沫層識(shí)別rigid cellular foam layer 硬質(zhì)微孔泡沫層isolation foam layer 泡沫隔離層foam layer filling 泡沫夾芯層foam heat -insulation layer 泡沫保溫層polyurethane foam heat -insulation layer 聚氨酯泡沫保溫層 返回 foam layer