短語(yǔ)詞組短語(yǔ)gum chicle water 膠水gum m water 膠水guar gum water -base fracturing fluid 瓜爾膠水基壓裂液water gum 水紫樹water -gum 水紫樹water soluble gum association 水溶性樹膠協(xié)會(huì)water shield gum 莼菜膠water soluble gum 水溶性樹膠 返回 gum water