The surface and cross-section of the pock flaws which appeared on the hot-dip galvanized coating were observed and analyzed by using SEM and energy spectroscopy.
通过扫描电子显微镜对热镀锌钢板镀层表面麻点缺陷的表面和断面形貌进行了观察，并对其进行了能谱分析。
2
Relationship curves between seam dip Angle, horizontal section height and roof deformation are derived, at the seam time, the criterion of failure is given in this paper.
得出了煤层倾角、水平分段高度对顶板变形的影响关系曲线，同时，给出了顶板破断的判据。
3
Based on previous data, this paper sums up the reflection texture and the variety of amplitude of the river sandstone body in a dip seismic section.