氟利昂 | fú lì áng | freon (chemistry) | |
氟化 | fú huà | fluoridation; fluorination | |
氟化氢 | fú huà qīng | hydrofluoric acid | |
氟化物 | fú huà wù | fluoride | |
氟石 | fú shí | fluorite CaF2; fluorspar; fluor |
1 | But how does fluoride work its magic? | |
2 | Toothpastes and mouthwashes are good sources of fluoride. | |
3 | Now here is fluorine, same skeleton, only fluorine has seven valence electrons. | |
4 | This could be the reason that children develop cavities - the lack of fluoride. | |
5 | There are many tartar control toothpastes on the market, most of which contain fluoride. |