野外定向地图，比例1：20 00，等高线间距5米。

Orienteering Map, Scale 1:2000, Vertical Interval 5m.

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指出了求作不规则坡地等高线间距时不正确的方法，同时提出了正确的方法并进行了分析论证。

This thesis points out the incorrect methods for seeking the spacing between the contour lines of irregular sloping field, gives out and proves the right ways.

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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。

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.

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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。

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.

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