topical fluoridation局部用氟
fluoridation water饮水氟化
fluoridation protector氟保护剂
water fluoridation饮水加氟;饮水氟化
salt fluoridation食盐氟化
fluoridation reaction氟化反应
fluoridation of water水的氟化
de-fluoridation除氟方法
school water fluoridation学校饮水氟化
N-UNCOUNT（不可数名词） Fluoridation is the action or process of adding fluoride to a water supply. 饮用水加氟过程
...fluoridation of the water supply.
...饮用水的氟化处理。