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| amaciamento (通过消除形成硬度的(主要是钙和镁)离子或离子交换，或除掉它们所结合的物质如某些可溶但非电离盐类如磷酸盐，以减少水的硬度。) | |||
| 软化: 1 phrase in 1 subject |
| Isolation | 1 |
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