open stair well是什么意思

网络释义

1)open stair well,露明楼井2)open-well stair,露明梯井楼梯3)forestair['fɔ:,stɛə],露明楼梯4)open well stair,露幂井楼梯5)open well,露明梯井6)open-string stairs,露明梁楼梯