fluorine in water

• 水氟

fluorine in water的用法和样例：

例句

1. Conclusions The results showed that in the Nan-shui-b ei-diao middle line areas the water fluoride and other chemical composition have acertain effect on endemic fluorosis.
   结论南水北调中线供水区水氟与水质中其它化学成分有关，对地氟病有一定影响。