Our investment in water softeners was a boondoggle.

我们在水软化器上的投资打了水漂.

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Water softeners are designed to remove the minerals are picked up from limestone: calcium and magnesium.

水软化剂的目的是消除石灰岩中带出的矿物质: 钙和镁.

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Home water softeners make use of the ion exchange properties of natural or synthetic zeolite minerals.

在硬水地区,人们利用天然沸石或人造沸石的性质制作家庭用水软化器.

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