sealing and marking of bid是什么意思

用法例句

In sealed-bid E-auction,an E-auction system needs to provide adequately safe protections of the information in the submitted bids before they are opened so as to guarantee the competition fairness in the sealed biddings.

在密封电子拍卖中,为了保证密封投标竞争的公平,电子拍卖系统需要保护已经提交到系统中的密封标书在开标前的信息安全。