water-softener

英 ['wɔːtərs'ɒfnər] 美 ['wɔːtərs'ɒfnər]

• n. 软水机
• 软水剂.

英英释义

名词 water softener:

1. a substance (such as sodium chloride) that lessens the hardness of water by replacing calcium and magnesium ions with sodium ions and so gives the water more efficient sudsing power