The results show t hat cmr effect in multi - layer films is lager than that in tri - layer films 实验结果表明，多层膜的磁电阻效应比三层膜的磁电阻效应大。
2.
A subdural hematoma ( also know as a subdural hemorrhage ) is a buildup of blood immediately below the dura ? the outermost of the three membranes that surround the brain 硬膜下血肿（也叫做硬膜下出血）是指在脑硬膜下形成血块。脑硬膜是包围大脑的三层膜的最外面的一层。
