The cooling medium, or coolant, in them is either water or some low-freezing liquid, called antifreeze. 系統所用冷卻介質或是冷卻液常委水或其他低凝固點液體，稱為抗凝劑。
A water-cooling system means that water is used as a cooling agent to circulate through the engine to absorb the heat and carry it to the radiator for disposal. 水冷系統意味著水將用作冷卻介質，用於在發動機中循環吸收熱並將之帶到散熱器中散出。
Do not use coolant additives that are claimed to improve engine cooling. 不要使用聲稱能提高引擎冷卻效果的冷卻劑添加劑。
Frequently the cause is poor mold cooling and this is frequently caused by a lack of coolant rather than its temperature. 影響脫模的原因常常是差的模具冷卻效果，而這又是由於缺乏冷卻劑，而不是溫度的設定所致。
