drawn off的用法和樣例：
例句
- An agent that produces cooling, especially a fluid that draws off heat by circulating through an engine or by bathing a mechanical part.
冷卻劑一種用來(lái)冷卻的制劑，尤指通過(guò)在發(fā)動(dòng)機中流動(dòng)或通過(guò)沖洗某個(gè)機械部件從而帶走熱量的液體 - A pipe or channel by which liquid is drawn off.
排水管排掉液體的管或通道
