氟

Fluorine is the most reactive element in the periodic table.
氟是周期表中最活跃的元素。
Hydrogen fluoride, a compound of hydrogen and fluorine, is used in the production of certain chemicals.
氢氟酸（氢和氟的化合物）用于制造某些化学品。
The dentist applied a fluoride treatment to the patient's teeth to prevent cavities.
牙医给患者的牙齿涂上了氟化物以防止蛀牙。
Fluoride ions are essential for the development of strong bones.
氟离子对于骨骼的发育至关重要。
Fluoride-based toothpaste is recommended for daily oral hygiene.
建议使用含氟牙膏进行日常口腔清洁。
Fluorine can be found naturally in some mineral waters and in the Earth's crust.
氟在某些天然矿泉水和地壳中自然存在。
The excessive exposure to fluorine can cause health issues like dental fluorosis.
过量接触氟可能会导致健康问题，如氟斑牙。
Scientists study the behavior of fluorine under different conditions to understand its unique properties.
科学家研究氟在不同条件下的行为，以了解其独特的性质。
Fluoride is often added to water supplies to prevent tooth decay in communities.
在社区供水中添加氟是为了防止龋齿。
Fluorine compounds are used in various industrial processes, such as metal etching and semiconductor fabrication.
氟化物化合物被用于各种工业过程中，如金属蚀刻和半导体制造。