natural rubber latex concentrate-preparation of dry films干: trunk; main part胶膜: coating制备: lining-up; preparation膜制备: film preparation薄膜制备: film preparation下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:干胶膜制备，即可在微信中查询翻译
