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1·Some traders like to use standard deviation channels, often called Bollinger bands, which expand and contract in response to market volatility.

有些交易者喜欢用标准背离通道，经常被称作布林通道，根据市场波动情况它会伸缩。

2·The experiment results show that it is an effective method to reflect the characteristics of real estate cycle fluctuations and forecast the price trend with the K-line theory and Bollinger Bands.

实验结果证明，K线与布林线组合的房地产周期波动分析及价格趋势预测是一种有效的研究手段，能够反映房地产周期波动的特征及趋势，是一种值得推广的研究方法。

3·A Bollinger band technical indicator looks similar to the moving average envelope, but differs in how the outer bands are created.

布林线技术指标和移动平均包络线相同，但是不同是外部布林线是怎样创建的。