单词limescale
n.: （管道等内的）水垢
（管道等内的）水垢:
the hard white substance that is left by water on the inside of pipes, etc.
pour coca cola into your kettle and leave all day . this will remove limescale and leaves it clean inside.
在茶壶中灌满可乐，静置一天，这样可以去除茶壶内部的茶渍。
Pour Cola into your kettle and leave all day. This will remove limescale and leaves it clean inside.
把可乐倒入壶里静置一天可以去除污垢，让壶内胆一尘不染。
Just as an acid descaler breaks apart limescale inside a kettle, so the shells that protect molluscs and other creatures will be dissolved.
正如酸性清洁剂溶解水壶内的水垢，保护软体动物和其他生物的外壳也会被酸性海水溶解。
And I know I can eliminate most of the limescale deposits and an overdose of chlorine in my tap water by filtering the mains supply at home.
而且我知道，通过对家里的自来水进行过滤，我可以除去大部分石灰沉淀物和过量的氯。