In this dissertation, we investigate mainly two types of film materials with magnetoresistance effects: the manganese perovskites oxide sandwich films and metal granular films.
本论文主要研究对象是两种类型的磁电阻薄膜材料：锰基钙钛矿结构氧化物三明治多层膜和金属颗粒膜。
2
Like most advanced racing sails, they are a sandwich of polyester film sheets with a filling of carbon fibers providing strength.