1.除去...的锅垢
1.to remove the lime scale that has accumulated in a household appliance such as a kettle
2.to remove the white powder that forms on metal containers when the water in them contains a lot of chemicals
1.and on the other hand the damage of fireproof materials can be avoided through the descaled water spraying into the coiler furnace.
另一方面可以避免除鳞水喷进卷取炉损坏耐火材料。