讨论了多相物质粉末衍射的物相检索问题 ,介绍了XRDS的物相检索软件。这是一种智能型的物相检索程序 ,考虑了测试数据的不确定度 ,以及粉末样品和块状样品衍射图谱各自的特点 ,不仅注意到实际样品中微量物相存在的可能 ,也注意到块状样品结构有序性的可能。XRDS能够帮助材料工作者同时检出样品中所含的多种物相及其含量 ,操作简单、结果可靠 The phase retrieval of multiphase powder diffraction was discussed. The phase retrieval software of XRDS was introduced. This is an intelligent phase retrieval procedure that takes into account the uncertainty of the test data and the individual characteristics of the diffraction patterns of the powder and bulk samples not only noting the possible presence of trace species in the actual sample but also noting Block sample structure may be ordered. XRDS enables material workers to simultaneously detect multiple phases and their contents contained in a sample, with ease of operation and reliable results