The damping capacity of the Fe-17.5Mn and Fe-17.5Mn-0.3Mm(rare-earths) alloys was measured by reversal torsion device. The microstructure was observed with the Olympus optical microscope.是什么意思_The damping capacity of the Fe-17.5Mn and Fe-17.5Mn-0.3Mm(rare-earths) alloys was measured by reversal torsion device. The microstructure was observed with the Olympus optical microscope.在线翻译_英语_读音_用法_例句