To solve the north high hardness of water quality, and hardness of the water quality in the south.
能够解决北方高硬度水质，以及南方中硬度水质。
Uncertain degree is evaluated to adopt EDTA titrimetric law to measure total hardness of water quality.
采用EDTA滴定法测定水质总硬度的测量不确定度评定。
The effect of the water alkalinity and the water hardness on noodle quality was reviewed.
研究了水的碱度、硬度对面条品质的影响。
The article mainly presents the technical research on the water quality stabilization treatment of high-hardness water in blast furnace circulating cooling system.
本文主要介绍了用高硬度水做高炉循环冷却水的水质稳定处理技术研究。
The research status of scale-resistant property of water quality stabilizer BD-5 for low hardness and low alkalinity surface water is presented in this paper.
文章介绍了BD-5水质稳定剂对低硬低碱度地表水的阻垢性能研究情况。
Hand wash utensils used for a variety of quality and hardness of the water quality for any.
用于手洗各种质量的器皿，并适用在任何硬度水质。
Hand wash utensils used for a variety of quality and hardness of the water quality for any.
用于手洗各种质量的器皿，并适用在任何硬度水质。
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