lute

中文： 封泥、密封胶泥、橡胶密封圈

1. Thick sticky clay or cement used to close up a hole or gap, especially to make something air-tight. (countable, uncountable)
2. A packing ring, as of rubber, for fruit jars, etc. (countable, uncountable)
3. A straight-edged piece of wood for striking off superfluous clay from earth. (countable, uncountable)

复数 lutes