Such structural features can be identified by contouring directly on either top or bottom surface of the reservoir with a contour interval of 1-5m.
直接以油层顶面（或底面）为准绘制小等高线间距（1—5米）构造图，可显示出微型构造特征。
2
The paper analyses structural characteristics of liquefaction potential data of a saturated site and draws the contour of liquefaction potential of the site.