它在2008年开始电子交易，但为其171家会员保留了公开喊价交易大厅。
It started electronic trading in 2008 but maintains an open-outcry trading floor for its 171 members.
股票曾经是通过公开喊价系统交易，证券交易所的交易员直接报出股价。
Once, stocks were traded through the open outcry system, with men Shouting share prices on the floors of stock exchanges.
公开喊价和电子交易的设施是由以计算机为基础的系统来进行交易指令传递、执行、匹配的。
Many electronic trading facilities are supported by computer-based component systems for the order-routing, execution or matching of trades.
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