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Calcium has a very narrow safe range of intake.
钙具有很窄的安全范围的摄入量。
youdao
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The reference intake of calcium differs greatly among different countries.
目前各国制定的钙参考摄入量不同。
youdao
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The reference intake of calcium differs greatly among different countries.
目前各国制定的钙参考摄入量不同。
youdao