sealer
noun /ˈsiːlə(r)/
/ˈsiːlər/
- (also sealant)[uncountable, countable] a substance that is put onto a surface to stop air, water, etc. from entering or escaping from it
密封剂；密封胶；防渗漏剂 - [countable] a person who hunts seals
捕猎海豹者 - [countable] a ship used for hunting seals
捕猎海豹者