中文：

均线乖离率是指股票价格与移动平均线之间的偏离程度。具体来说，均线乖离率是股票价格与移动平均线之间的差的绝对值与均线标准差之比。均线乖离率有正负之分，当股票价格高于移动平均线时，乖离率为正，反之为负。

均线乖离率是技术分析中一个重要的指标，它反映了股票价格与移动平均线之间的变化关系。当股票价格与移动平均线之间的乖离率过大时，说明股票价格与移动平均线之间的趋势存在较大的差异，这时投资者需要根据市场走势和股票的技术分析来调整自己的投资策略。

均线乖离率的优点在于它能够反映股票价格的波动情况，并且可以作为买卖股票的参考指标。同时，均线乖离率还可以与其他技术指标结合使用，以提高预测股票价格的准确性和可靠性。

英文：

The moving average deviation rate refers to the degree of deviation between a stock price and a moving average line. Specifically, it is the ratio of the absolute value of the difference between the stock price and the moving average line to the standard deviation of the moving average line. The moving average deviation rate has positive and negative values. When the stock price is higher than the moving average line, the deviation rate is positive, and vice versa.

The moving average deviation rate is an important index in technical analysis that reflects the relationship between stock prices and moving average lines. When the deviation rate between stock prices and moving average lines is too large, it means that there is a significant difference in trends between stock prices and moving average lines. At this time, investors need to adjust their investment strategies based on market trends and stock technical analysis.

The advantage of the moving average deviation rate lies in its ability to reflect the volatility of stock prices and can be used as a reference index for buying and selling stocks. In addition, the moving average deviation rate can also be used in combination with other technical indicators to improve the accuracy and reliability of predicting stock prices.