1·Based on the experiment and research, this paper presents the advantages of using PTFE soft belt bearing shell to substitute babbitt metal.
在实验研究基础上，提出了用PTFE(聚四氟乙烯)软带轴瓦替代巴氏合金轴瓦的问题。
2·Electric heating pipe can be widely used in heating water, oil, air, nitrate solution, acid solution, alkali solution and low melting point metal (aluminum, zinc, tin, Babbitt).
电加热管可广泛应用于加热水、油、空气、硝盐溶液、酸溶液、碱溶液和低溶点金属(铝、锌、锡、巴氏合金)。