例句與造句

1. The preferential removal of weathered bedrock by erosion creates often creates bedrock blocks, which are called corestones.
2. The preferential removal of softer material exposes the flat surface of the underlying harder layer creating the tread of a structural terrace.
3. A Levallois core with preferential removals, found isolated in stratigraphic context, is the first evidence for the Middle Paleolithic at Ounjougou.
4. It's difficult to find preferential removal in a sentence. 用preferential removal造句挺難的