【中文版】

股票副图是股票技术分析中重要的组成部分，可以帮助投资者更好地了解股票走势和趋势。那么，股票副图应该用什么指标呢？

首先，移动平均线是股票副图中常用的指标之一。移动平均线是通过对历史价格数据的计算，得出一条反映股票价格趋势的曲线。通过观察移动平均线，投资者可以判断股票价格的长期趋势和短期波动。

其次，成交量也是股票副图中需要关注的指标之一。成交量是反映市场交投情况的数据，通过观察成交量，投资者可以判断股票的买卖力量和趋势。

另外，MACD指标也是股票副图中常用的指标之一。MACD指标是一种趋势指标，通过对股票价格、成交量和波动率的计算，得出一条反映股票价格趋势的曲线。通过观察MACD指标，投资者可以判断股票价格的短期趋势和买卖信号。

最后，布林带也是股票副图中常用的指标之一。布林带是一种振荡器，通过对股票价格的计算，得出一条反映股票价格波动范围的曲线。通过观察布林带，投资者可以判断股票价格的短期波动和买卖信号。

总之，股票副图应该使用多种指标进行分析，以便更全面地了解股票走势和趋势。其中，移动平均线、成交量、MACD指标和布林带是常用的指标之一，但投资者也可以根据自身需要选择其他适合自己的指标。

【英文版】

The stock sub-chart is an important component of technical analysis in stock trading, which can help investors better understand the stock trend and market movement. So, what indicators should be used in the stock sub-chart?

Firstly, moving average is one of the commonly used indicators in stock sub-charts. Moving average is a curve reflecting the trend of stock prices by calculating historical price data. By observing moving average, investors can judge the long-term trend and short-term fluctuations of stock prices.

Secondly, trading volume is also an important indicator to be关注的 in the stock sub-chart. Trading volume reflects the trading activity in the market, and by observing it, investors can judge the strength and trend of stock buying and selling.

In addition, MACD is also one of the commonly used indicators in stock sub-charts. MACD is a trend indicator that calculates the trend of stock prices by using parameters of price, volume and volatility. By observing MACD, investors can judge short-term trends and buy/sell signals of stock prices.

Finally, Bollinger Bands is also a commonly used indicator in stock sub-charts. Bollinger Bands is an oscillator that calculates a band reflecting the range of stock price fluctuations. By observing Bollinger Bands, investors can judge short-term fluctuations and buy/sell signals of stock prices.

In summary, the stock sub-chart should use multiple indicators for analysis to more comprehensively understand the trend of stock prices. Some commonly used indicators include moving average, trading volume, MACD and Bollinger Bands. However, investors can also choose other indicators that are suitable for their own needs.