中文：

集合竞价是指股票市场在每日开盘前，所有投资者按照一定的价格范围进行申报，然后通过计算机系统撮合成交的一种竞价方式。在集合竞价期间，投资者可以在规定的价格范围内申报买卖，但不能在集合竞价结束后进行实际的交易。

集合竞价的目的是为了确定开盘价，即市场中最有代表性的价格。这个价格是通过所有投资者的申报价格和数量进行撮合而成的。在撮合过程中，系统会按照价格优先、时间优先的原则进行排序，最终得出一个最接近市场真实价值的开盘价。

集合竞价对于投资者和市场来说都有着重要的意义。对于投资者来说，集合竞价提供了一个预估市场走势的机会，可以帮助他们更好地把握投资机会。对于市场来说，集合竞价可以有效地防止市场操纵和价格波动，保障市场的公平和透明。

总的来说，集合竞价是一种公平、透明、有效的竞价方式，对于投资者和市场都有着重要的意义。

英文：

Collection auction refers to a way of auction in which investors submit orders within a certain price range before the market opens each day. The computer system then matches the orders to determine the opening price, which is the most representative price in the market.

The purpose of collection auction is to determine the opening price, which is the most representative price in the market. This price is determined by matching the orders of investors at various prices and quantities. During the matching process, the system sorts the orders in accordance with the principles of price priority and time priority, and ultimately obtains an opening price that is closest to the true market value.

Collection auction has important significance for both investors and the market. For investors, collection auction provides an opportunity to predict market trends and better grasp investment opportunities. For the market, collection auction can effectively prevent market manipulation and price fluctuations, ensuring fairness and transparency in the market.

Overall, collection auction is a fair, transparent, and effective way of auction that has important significance for both investors and the market.