The characteristics of small faults are coarctation and zonation with clear direction.小斷層具有密集成帶的特點(diǎn),且方向性明顯,成為影響煤礦生產(chǎn)的主要地質(zhì)因素.This portion of aorta was resected from a patient with a coarctation.主動(dòng)脈的一部分,通過切除一例主動(dòng)脈狹窄病人的主動(dòng)脈而得來....