地形: topography; landform; relief ...起伏: rise and fall; ups and downs ...比: 2地形起伏: hypsography; land wave; roughness of relief; topographic inequality; topographic relief地形起伏图: hypsography高差;地形起伏: relief地形起伏高度: topographic relief height地形起伏模型: solid relief model地形起伏趋向: topographic grain地形起伏校正: correction for relief堆积地形起伏: constructional topographic relif局部地形起伏: local relief起伏比: fluctuation ratio古生代地形起伏: palaeozoic relief显著的地形起伏: salient relief波形起伏: glint; waviness起伏地形: accidented relief; hummock-and-hollow topography; rolling terrain; rolling topography; rugged topography小起伏地形: underfeature平缓起伏地形: gently rolling topography显著起伏地形: salient relief起伏不平的地形: a wavy terrain起伏加大的地形: increased relief起伏平缓的地形: gently rolling topography自然起伏的地形: free flowing contour起伏: rise and fall; ups and downs; heave rolling; undulate; fluctuate 起伏不平的地形 a wavy terrain; 起伏的波涛 theheaving billows; 关系起伏 ebb and flow of the relations; ups and downs in the relations; 山峦起伏。 the mountain ranges rise and fall