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The incidence of fluorosis is correlative with the content of Fluoride, which comes from mother-rock and is related to petrogenic element in soil.

F与土岩元素具显著正相关,主要来自于成土母质。

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The endemic fluorosis is a kind of endemia widely distributed in Ningxia, and this is strongly related to the special natural geochemical environment of Ningxia.

要地氟病是广泛分布的一种地方病,与殊的原生地球化学环境有密切关系。

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Arafura Sea, Aragon, Aragonese, aragonite, Aragos'disk, aragotite, arak, Arakan Yoma, Araks, arala,

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3G, 401(K), a,

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CNN 10 学生英语 2019年4月合

But too much fluoride, especially for children who's adult teeth are still forming can lead to a problem called dental fluorosis when white patches form on teeth.

过多的氟化物,尤其对于儿童来说,年人的牙齿还在阶段,当牙齿上色斑块时,就会导致一种叫做氟斑牙的问题。

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araneum, aranilide, aranotin, Arantius'ligament, Aranyaka, arapahite, Arapaho, arapaima, araphia, araphorostic,

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3G, 401(K), a,
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