短語詞組短語liquid covering slag layer 液渣層concrete covering -layer 混凝土覆蓋層double -covering-layer 雙覆層covering soil layer inside levee 堤內壓蓋asphalt covering layer 瀝青加鋪層tympanic covering layer 翻譯deep thick covering layer 深厚覆蓋層linoleum floor covering layer 油氈地板覆蓋鋪設者covering layer thickness 保護層厚度 返回 covering layer