| 释义 |
seal·ant AHD[sēʹlənt] D.J.[ˈsiːlənt]K.K.[ˈsilənt]n.（名词）- A substance, such as sealing wax, used to seal a surface to prevent passage of a liquid or gas.密封剂：一种用来密封表面以防止液体或气体泄露的物质，如封蜡
- A plastic resin used in dentistry to coat the chewing surfaces of the back teeth to prevent the growth of cavity-causing bacteria.密封填充物：一种塑料合成脂，修牙时用作后牙咀嚼面的加封层，来抑制导致虫牙细菌的生长
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