什么是量比？

中文段落：

量比，作为股市中的一个重要技术指标，通常用于衡量某一特定时段内，股票市场的交易活跃程度。具体来说，量比是指某一股票在某一时间段的成交量与过去某一时段成交量的比值。通过这个比值，投资者可以直观地了解市场的买卖意愿和资金的流动情况。

在股市操作中，量比的大小往往与股价的涨跌有密切关系。一般来说，当量比明显放大时，意味着市场的交易热情较高，股价有可能出现上涨；而量比缩小时，则可能表示市场交易变得谨慎，股价可能面临调整。

除了用于判断市场的短期走势外，量比还可以结合其他技术指标，如价格、均线、MACD等，为投资者提供更加全面的市场分析和预测。同时，投资者在运用量比时，也需要注意结合市场的基本面信息，如公司的业绩、行业前景等，以避免单纯依赖技术指标而陷入盲目投资。

英文段落：

Volume ratio, as an important technical indicator in the stock market, is commonly used to measure the trading activity of the stock market during a specific time period. Specifically, the volume ratio refers to the ratio of the trading volume of a certain stock during a particular time period to the trading volume of the same stock during a past time period. This ratio allows investors to intuitively understand the buying and selling intentions of the market and the flow of funds.

In stock market operations, the size of the volume ratio is often closely related to the rise and fall of stock prices. Generally speaking, when the volume ratio significantly increases, it means that market trading enthusiasm is high, and the stock price may rise; when the volume ratio decreases, it may indicate that market trading becomes cautious, and the stock price may face adjustments.

In addition to being used to judge the short-term trend of the market, the volume ratio can also be combined with other technical indicators, such as price, moving average, MACD, etc., to provide investors with more comprehensive market analysis and predictions. At the same time, when using the volume ratio, investors also need to pay attention to combining fundamental information about the market, such as company performance, industry prospects, etc., to avoid blindly investing solely based on technical indicators.