scumboard
nounB2Định nghĩa theo từ loại
Danh từ
nounPlural noun:
scumboards
- 1.
A partition in a sewage tank etc. to block the passage of floating solids.
Nguồn gốc từ
From scum + board.
A partition in a sewage tank etc. to block the passage of floating solids.
From scum + board.