[化] 聚醚酮酮 poly(ether-ketone-ketone), pekk: 聚醚酮酮polyether ether ketone ketone: 聚醚醚酮酮polyether ketone ketone: 聚醚酮酮peek polyether ether ketone: 衙淹pek polyether ketone: 醚酮下载手机词典可随时随地查词查翻译