中文：

量比是指股票交易所在交易日开盘后每分钟平均交易量的比例。它反映了市场在开盘后的活跃程度和投资者的交易意愿。

量比数值的大小表示了市场交易的活跃程度。当量比数值较高时，表明市场交易活跃，投资者参与意愿强烈；而当量比数值较低时，表明市场交易清淡，投资者参与意愿较弱。

量比对于短线投资者具有重要的参考价值。通过观察量比的变化，投资者可以了解市场的交易活跃程度和投资者的交易意愿，从而更好地把握股票的买入和卖出时机。

英文：

The volume ratio refers to the proportion of average trading volume per minute of the stock exchange during the trading day after the opening of the market. It reflects the level of activity in the market after the opening and the willingness of investors to trade.

The size of the volume ratio indicates the degree of market activity. When the volume ratio is high, it indicates that the market trading is active and investors are willing to participate strongly; when the volume ratio is low, it indicates that the market trading is sluggish and investors are less willing to participate.

The volume ratio is of great reference value for short-term investors. By observing changes in the volume ratio, investors can understand the level of market activity and the willingness of investors to trade, so as to better grasp the timing of buying and selling stocks.