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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使得PFA(可溶性聚氟乙烯)塑料不体如水所介入和湿润。

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CNN 10 学生英语 2024年4月合集

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.

年来,这些化学物以惊人的速度发前为止,已经有超过9,000种与PFAS相关的化学物

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