短語(yǔ)詞組短語(yǔ)polygonal fissure soil 多角形裂縫土polygonal soil crack 多角龜裂polygonal -structured soil 多角形結(jié)構(gòu)土polygonal fi ure soil 多角形裂縫土stone polygonal soil structure 礫質(zhì)多角型構(gòu)造土 返回 polygonal soil