lowfrequency相关论文
In this Letter, a low-frequency acoustic sensor based on an extrinsic Fabry–Pérot (FP) interferometer with a silicon n......
介绍了低频电源矿热炉、以煤代焦冶炼铁合金、直流矿热炉三项新技术,指出了广泛推广这三项新技术有利于我国铁合金工业的技术进步和......