Poor wetting would produce voids at the interface.

浸润不良会在界面上产生孔隙。

youdao

But Mordred -- big, proud, poor Mordred -- he leaned against me the next day after losing control and wetting the carpet for the first time ever, and Douglas and I leaned onto each other, hard and sobbing, when we heard the word "tumor" the day after that.

CNN: Lean on me: Loving and losing a dog