目前预测碳酸钙结垢趋势和结垢量，都需要通过查图版来获得关键参数，结垢预测计算比较复杂。
At present, the key parameter is gained through a special plate to predict CaCO3 scaling tendency and amount, which makes calculation of scaling prediction method complicated.
民众抱怨水壶产生结垢，系硬水煮沸时其溶解性钙及镁形成碳酸钙及碳酸镁沉淀物所造成。
When people complain about scaling inside their water kettles, this is caused by dissolved calcium and magnesium ions forming calcium and magnesium carbonate deposits when hard water is boiled.
结果表明，油井无机结垢类型主要是碳酸钙垢，结垢最严重区域为油井井底及近井带，与实际情况基本吻合。
The results show inorganic scale is calcium carbonate and scale in down hole and well bore area is the most severe. It agrees with practical situation basically.
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