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total hardness of water
All waters contain two forms of hardness, i.e., temporary (or carbonate) hardness, and permanent (noncarbonate) hardness. The combination of the two is referred to as total hardness.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)