The crank is an offset section of the crankshaft . 曲柄是曲軸的偏置部分。
Based on the similarity of common reflection point trace gathers in one coherent zone , crs stack can focus more energy on the vicinity of the reflector , and therefore can obtain a high signal - to - noise ratio zero offset section by stacking events with the same phase 共反射面疊加利用了鄰近多個共反射點道集的相似性,提高了資料的覆蓋次數,從而壓制了隨機噪聲,增強反射波同相軸的連續性,大幅提高了地震資料的信噪比。