... panel girder 格子梁 plain girder 宽腹梁,实腹梁... segmental girder 弓形大梁,弓形梁...
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plain n girder 实腹梁
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There is typical loess ravine terrain, more than ten large areas of the plateau, and is mixed plateau, ravines, girder, valley, flat plain, chain of mountains, slope in Qingyang research region.
研究区庆阳既有典型的黄土丘壑地形，又有十多个面积相对较大的塬面，高原、沟壑、梁峁、河谷、平川、山峦、斜坡兼有。
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