构造起伏 meaning in Chinese

structural relief
tectonic relief

It may be infeasible to say whether an observed magnetic anomaly results from structural relief or from a lateral change in susceptibility .
不可能指出一个观测磁异常是构造起伏还是磁化率的横向变化所引起。
The research shows that with the time goes by , structural relief is smaller and accommondation is smaller as well . topography of basin becomes to be simple . four dispersed sub - sag grown to one sag ( boshen 5 sag ) , which reflected the process of rift stage converted to rift shrinking stage
研究认为，由下向上盆内的构造起伏逐渐变小，可容纳空间逐渐减小；盆地地形形态由强烈起伏逐渐变得平缓，表现为由初期的4个较分散次级洼陷逐渐演变为晚期的单一洼陷? ?渤深5洼陷，反映了盆地由裂陷阶段向裂陷萎缩阶段逐渐演化的过程；同时，构造走向也由nw ? se逐渐转为ne ? sw 。