单词	bedded deposit
释义	bedded deposit 层状矿床
随便看	perforation area perforation blocking perforation by burn Perforation by burn Perforation by wound perforation casing perforation charge perforation completion perforation configuration perforation density perforation deposit perforation diameter perforation disease perforation effect perforation efficiency perforation electric current perforation equipment Perforation,Esophageal perforation field perforation-flow efficiency perforation fluid perforation fracture perforation friction perforation ga perforation gauge