短語詞組短語protective e colloid 保護膠體theory of protective colloid 保護性膠體學(xué)說Chelating Agent Protective Colloid 螯合protective colloid detail 養(yǎng)護膠體protective colloid effect 護膠作用protective colloid and bodying agents 膠質(zhì)液保護劑和基料劑colloid protective agent 膠體保護劑 返回 protective colloid