This is the 13152nd most frequent Korean word.
두께를
"두께를" means "thickness" (as a grammatical object form).
두께를 is used to indicate the thickness being measured.
이 책의 두께를 측정해 보았습니다.
I measured the thickness of this book.
두께를 refers to the thickness of the wall that was minimized.
그 벽의 두께를 줄여서 공간을 넓혔습니다.
They reduced the thickness of the wall to increase space.
두께를 is utilized to discuss comparing the thickness of the cloth.