接下来，如果回到实际的氯化钠晶体中，你们做同样的计算，但是是在三维中。
And then, if you go the real sodium chloride crystal and you do this same calculation but in three-dimensions.
最后，星期三的每日邮报上刊登了耸人听闻的大标题“科学家称：经常在氯化水里游泳‘可能会增加膀胱癌发病的危险性。’”
Lastly, on Wednesday the Daily Mail ran with the scare headline "Swimming too often in chlorinated water 'could increase risk of developing bladder cancer', claim scientists".
如果波美浓度太低，则可加入高浓度的三氯化铁溶液。
If Baume concentration is too low, you can add high concentrations of ferric chloride solution.
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