不会在锅炉内部结成硬垢，并且容易排除。进入钠离子交换器的水。
The soft water can be used for feeding water of boiler and for some hard sediment in the boiler and can be easily removed.
甘蔗糖蜜酒精蒸馏设备的积垢，是一种以各种钙、镁盐为主的复合重硬垢，用常规的清洗方法难以凑效。
It is difficult to wash by usual method the filthy which is a compound hardened dirty mainly composed of Ca and Mg in alcohol distillation equipments.
吉林松花江水系水质为低硬低碱水质特点，浓缩倍数大于4时转为结垢型水质。
The water from the Songhua River system in Jilin Province features low hardness and low alkalinity and turns to water of scaling type when its enrichment factor is above4.
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