calcareous deposit meaning in English

钙质沉积
钙质沉着, 石灰质沉淀
石灰性沉积物

Calcareous deposits are usually formed on cathodically protected steel surface in sea water , and their importance in reducing the current requirement to maintain adeguate protection is generally recognized
摘要钙质沈积通常会在阴极保护的海水结构物上沈淀，而减少要达保护电位所需的电流密度。
Numerous factors may influence the properties and protective nature of calcareous deposits , such as potential / current / time . temperatwe , flow rate , sea water chemistry and metal swface condition
但有些因素如电压电流时间的应用、温度、海水流量、海水化学性质和金属表面情况都会影响这沈积的保护性质。