The surface oxide layer of grain-oriented electrical steels was investigated by scanning electron microscopy.The formati......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

目的：优选三黄膏巴布剂的最佳基质配比，为其成型工艺研究提供依据。方法：分别以涂展性、均匀性、剥离性、皮肤追随性及外观为指标，采用......

The clear zigzag-line pattern on transverse cross sections can be used to explain the formation mechanism of the weld nu......