<正>借助90倍体视显微镜的放大功能和摄像头成像技术，利用标准尺在屏幕上指示的刻度来测量裂纹的宽度。采用定点划线的方法，测量面板正面的所划定3条线上所有裂纹宽度，并用裂纹平均宽度和裂纹宽度标准差两个参数来评价面板正面的质量。提出了面板正面裂纹缺陷的评价方法，并在实测的基础上，对红橡、柞木、帕利印茄面板正面裂纹开裂情况进行测量，分析了正面裂纹对涂饰表面裂纹的影响，并验证了此评价方法的可行性。

ORDBMS Oraclegi provides a new SQL(Spatial Query Language), the spatial data model, the standardization of spatial connection and the set of spatial manipulation. In this paper, the weaknesses of GIS implemental technique are pointed out. Oracle 9i can solve some problems, such as saving spatial data effectively, intensiveness, community, carrying out long affair quickly by cluster technique, achieving spatial-time analyse by the technique of database warehouse and data mining.