Ore minerals in the Colorado - type deposits are of uraninite and coffinite, with associated vanadium and minerals. 科罗拉多型矿床中的铀矿物为晶质铀矿和水硅铀矿, 与之共生的还有钒,铜矿物.
拖把和水桶a mop and bucket旅馆清洁工拿着水桶和拖把进来.The hotel cleaner entered carrying a bucket and a mop.那个侍女把拖把放进桶里浸湿,用来擦地.The maid plunged the cloth into the pail and cleaned the floor....