短語詞組短語sealed -bid first price auction 第一價格拍賣two sealed -bid auction 二級密封拍賣second -price sealed-bid auction 密封遞價次高價拍賣;第二價格暗標(biāo)拍賣;價位秘密競標(biāo)first -price sealed-bid auction 密封遞價最高價拍賣the First -price Sealed-bid Auction 第一價格密封式拍賣Sealed -bid E-auction RHT encryption protocol 密封電子拍賣RHT加密協(xié)議 返回 sealed bid auction