例句與造句

1. three angular unconformities found in the field work in the previous baishan formation of the carboniferous in poziquan area help to subdivide baishan formation into four formations
   摘要通過野外工作，在前人所劃的坡子泉地區石炭系白山組內新發現三個角度不整合，而將白山組解體成四個組。
2. It's difficult to find angular unconformities in a sentence. 用angular unconformities造句挺難的