The auxiliary fuel tank is made of polyethylene. 副燃油箱是用聚乙烯制造的。
The paper describes the initial development, evolution, and use of reticulated polyurethane foam as an explosion suppression material in fuel tanks and dry bays. 介绍了用于飞机燃油箱以及干舱填充用的防火防爆网状聚氨酯泡沫材料最初的发展以及改进和使用情况。