existing gum
英 [ɪɡˈzɪstɪŋ ɡʌm]
美 [ɪɡˈzɪstɪŋ ɡʌm]
【化】潜在胶质
双语例句
- Such bone-density loss can speed the progression of any existing gum disease.
这种骨密度的丢失会加速任何已经存在的齿龈疾病。 - Influence of existing gum in diesel fuel on engine performance
柴油实际胶质对发动机的影响