Complex sentence: Poteaux-sur-sol (posts on a sill) is a general term for any kind of framing on a sill however sometimes specifically refers to "vertical log construction" like poteaux-en-terre placed on sills with the spaces between the timbers infilled.
Split into simpler sentences: Poteaux-sur-sol (posts on a sill) is a general term for any kind of framing on a sill. However, sometimes it specifically refers to "vertical log construction" like poteaux-en-terre placed on sills with the spaces between the timbers infilled.