Horseshoe bend is a looping meander entrenched into the bedrock .
马蹄湾是挖沟进入基岩的环状曲流。
That is classically a signal that shares have been sold down to a " bedrock " cheap valuation , prompting new investors to start looking for bargains .
这通常表明股价已跌至“底部”，从而促使新的投资者开始逢低吸纳。
They drilled down as far as the bedrock , obtaining a nearly complete 108.3-metre sediment core .
他们一直钻探到了底层的基岩，得到了108.3米厚的近乎完整的沉积物。
The cobble - sized clasts match well with local granite bedrock , indicating that their provenance must be local .
鹅卵石大小的碎屑与当地的花岗岩基岩很好地配合表明了它们的来源必须是本地的。
The closest bedrock exposures of similar rock lie in northwestern idaho .
