求翻译：凸出曲线两翼已经直插，并且带有次级的曲线，凸出曲线宽度大约2公里，长度大约8公里，东北翼不太陡（60度到70度），西南翼（70度到90度）。是什么意思？

Bulge-line curves of the two wings, and with the secondary curve, protruding curve width of about 2 km length of about 8 km northeast wing is not very steep (60 degrees to 70 degrees), the southwest wing (70 degrees to 90 degrees ).

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Protruded the curve two wings already in-line, and had the secondary curve, protruded the curve width about 2 kilometers, the length about 8 kilometers, the northeast wing steep not too (60 degrees to 70 degrees), southwest wing (70 degrees to 90 degrees).

Convex curved wings have line and curve with a secondary, convex curve width of about 2 km, about 8 km in length, East Wing is not too steep (60 degrees to 70 degrees), the Southwest wing (70 to 90 degrees).

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