coursed square rubble分层方块堆石;成层方块毛石
coursed random rubble成层乱砌毛石
coursed snecked rubble成层杂乱毛石
coursed rubble masonry成层毛石圬工;分层毛石圬工
irregular-coursed rubble不规则成层毛石
random coursed rubble不规则成层毛石
regular coursed rubble毛石整层砌
coursed rubble wall分层毛石墙