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The carbon-fluorine single bond is among the strongest known and results in PFA being virtually chemically insert and nonwettable by fluids such as water.

氟化碳单键间的结合力很强使PFA性聚氟乙不会被流体如水所介入和湿润。

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CNN 10 学生英语 20244

Now over the last several decades, these chemicals have been developed at this breakneck pace with now more than a 9,000 PFAS related chemicals to date.

过去几十来,这些化学物以惊人的速度发展,到目前为有超过9,000种与PFAS相关的化学物

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