基本解释n.胶体石墨(石墨沉淀；碳末润滑剂；导电敷层)同根派生 英汉例句The Development of Aquadag Used on Multi- Die Drawing Machine for Drawing Fine Tungsten Wire 多模拉丝机拉制细钨丝用石墨乳的研制aquadag coating 胶体石墨敷层