poly-tetrafluoroethylene bearing, ptfe bearing怎么读
poly-tetrafluoroethylene bearing, ptfe bearing的發音，poly-tetrafluoroethylene bearing, ptfe bearing的讀音，poly-tetrafluoroethylene bearing, ptfe bearing怎麼讀，poly-tetrafluoroethylene bearing, ptfe bearing pronunciation，发音，例句，用法，同义词，反义词由查查汉语词典提供，版权所有违者必究。