크기와 분포 조정으로 묽은 변성 개선 - 크기: 분유 입자 크기 - powder grain size. (this is my best guess, so may need confirmation) - 분포: distribution (milk powder spreading evenly) - 조정: control, adjustment. - 변성: degeneration. - 묽은 변성: watery degeneration -> excessive wateriness. - 개선: improvement. So, a literal translation would be: Improvement on wateriness problem through a better control of grain size and distribution. More naturally: Reduced wateriness through grain size control and more even distribution. (This is my best guest. Please cross-check with other information to confirm it)